Pre & Postnatal Fitness FAQ

Oct 7

Exercise before and after birth comes with a lot of conflicting advice and a lot of "shoulds." Exercise can be a really helpful tool to feeling good, mentally and physically, and staying healthy when used properly during these life stages. Unfortunately, there are a lot of differing opinions circulating that make it difficult to know what will actually be effective and safe. To help you sort through the noise, this FAQ answers the questions that come up most often, grounded in the latest research and clinical guidance.

This is general education, not medical advice. Always get clearance from your provider(s) before starting or changing an exercise routine at every stage.

Prenatal

Is it safe to exercise during pregnancy?
Can I start working out during pregnancy if I wasn't active before?
What should I avoid during pregnancy?
Can I still lift weights while pregnant?
Can I still run or do high-impact exercise while pregnant?
What is the pelvic floor and why does it matter so much right now?
What are warning signs I should stop and call my provider?

Postnatal

How soon should I be back in my normal exercise routine postpartum? Can I just pick back up after six weeks?
When can I return to weight training postpartum?
When can I return to running or high-impact activity postpartum?
When will I get my body back after giving birth?
How do I know if I have diastasis recti?
Do I need to see a pelvic floor PT?
What are warning signs I should stop and call my provider postpartum?

Prenatal

1. Is it safe to exercise during pregnancy?

Yes. For most women, exercise during pregnancy is not only safe, it's actively recommended. The American College of Obstetricians and Gynecologists (ACOG) encourages regular physical activity throughout pregnancy for women without contraindications¹, and the research backs this up: a meta-review of 18 systematic reviews found physical activity during pregnancy reduced the risk of gestational diabetes by 24–38%, with the biggest benefit coming from a combination of strength and aerobic exercise started early and maintained throughout pregnancy². The benefits extend further. For you, that includes reduced risk of gestational hypertension and preterm birth, less low back pain and urinary incontinence, better mood and sleep, and often an easier postpartum recovery. Movement benefits your baby too, supporting healthy fetal growth, lung development, and neurodevelopment.

The general target is the same one used throughout pregnancy: 150 minutes of light-to-moderate cardio per week, plus strength training at least 3x per week. A good gut-check for "moderate intensity" is the talk test: you should be able to hold a conversation while exercising, but not comfortably sing.

Most activities you were already doing before pregnancy are fine to continue, often with some modifications as your pregnancy progresses (more on that in the next few questions, since weight training, running, and high-impact activity each have their own nuances).

Some pregnancy complications or medical conditions may limit what's safe for you, which is why getting clearance from your provider before starting or continuing an exercise routine is always highly recommended. Loop them in on what kind of activity and intensity you're doing or planning to do, so they can flag anything specific to your situation.

2. Can I start working out during pregnancy if I wasn't active before?

Yes. Pregnancy is actually a great time to start, and ACOG specifically encourages previously sedentary women to begin an exercise program rather than staying inactive¹. In fact, physical inactivity combined with excessive weight gain is itself a risk factor for complications like gestational diabetes, so starting to move more can genuinely work in your favor.

The main difference from someone who's already active: you'll want to progress more gradually, keeping effort at a comfortable, sustainable level (think perceived exertion at or below about 8.5 out of 10). Good places to start include:

Walking
Swimming
Stationary cycling
Prenatal yoga
Bodyweight strength exercises (squats, glute bridges, modified push-ups, and gentle pelvic floor/core work)

A reasonable starting point is short sessions (around 15–20 minutes, a few times a week), gradually working toward the general pregnancy target of 150 minutes of moderate cardio per week alongside strength training a few times a week.

If you're not sure where to begin, start with walking! Additionally, there are many good online resources and apps with beginner-friendly or pregnancy-specific programs to help you ease in with structure. Working 1:1 with a fitness coach or trainer is another great option if you'd like a program built specifically around your starting point, goals, and how you're feeling.

Some pregnancy complications or medical conditions may limit what's safe for you, so get clearance from your provider first, and let them know you're starting fresh so they can weigh in on what makes sense for your situation.

3. What should I avoid during pregnancy?

There's a short list of activities to avoid while pregnant, mostly because of fall risk, impact risk, or effects on you or baby's oxygen/temperature regulation:

Contact or collision sports: boxing, rugby, hockey, and similar, where you risk getting hit or falling
Activities with a high fall risk: rock climbing, skiing, surfing, horseback riding
Scuba diving: the pressure changes aren't safe for the baby
High heat environments: hot yoga, hot Pilates, or exercising in extreme heat
High-altitude activities, if you don't normally live at altitude

Outside of these categories, most everyday movement and exercise is fine and encouraged. However, always listen to your body: if something doesn't feel good, don't do it. And if anything feels off during a workout (dizziness, unusual pain, shortness of breath beyond what feels normal), that's a cue to stop and check in with your provider.

4. Can I still lift weights while pregnant?

Yes. Strength training is not just safe during pregnancy, it's one of the most valuable things you can do. Research on supervised resistance training during pregnancy links it to a shorter first stage of labor and lower rates of operative delivery (like C-sections or assisted vaginal delivery), along with reduced risk of preterm labor³. It supports better postpartum recovery too. Building and maintaining muscle mass is genuinely beneficial for overall metabolic health. Muscle helps your body metabolize and stabilize blood sugar, which plays a real role in managing gestational health and lowering the risk of complications like gestational diabetes and large birth weight (macrosomia).

That said, your approach will shift a bit from a typical strength program:

Lean toward lower weight, higher reps (around 12–15 reps), and stop 1–3 reps short of failure rather than pushing all the way to failure. You can still achieve hypertrophy (aka close to or at the point that you can’t do another rep) which is needed for muscle growth, just with less intensity.
Keep effort controlled: perceived exertion at or below about 8.5 out of 10
If you know your 1-rep max, stay under about 80% of it
Practice connection breathing: inhale as you rest, exhale as you exert, and never hold your breath during a lift
Avoid lying on your stomach, and avoid lying on your back if it makes you lightheaded in the second or third trimester (a major blood vessel can get compressed in that position, so just be self-aware and switch to an incline or side-lying variation if needed)

As your belly grows, some exercises will need modifying. Barbell movements often become more comfortable as dumbbell or cable alternatives, and front-loaded exercises like planks or push-ups may need adjusting for space and comfort. None of this means less effective training, just smarter positioning for where you are in pregnancy.

As always, get clearance from your provider, and let them know what kind of lifting you're doing so they can flag anything specific to your situation.

5. Can I still run or do high-impact exercise while pregnant?

Yes. If you were already running or doing high-impact activity before pregnancy, you can typically continue, with a few adjustments to keep things controlled and comfortable:

Keep your heart rate under about 90% of your max. A simple estimate is (220 – your age) × 0.9
Keep perceived effort at or below about 8.5 out of 10
Avoid HIIT-style efforts, meaning anything that pushes you to a 9–10/10 exertion level
Switch to lower-impact cardio (walking, swimming, biking) if running or jumping starts to feel uncomfortable. This is common and expected as pregnancy progresses, not a sign anything is wrong

Many women find running feels fine through the first trimester and sometimes even the second, then naturally less comfortable later on as balance, joint laxity, and pelvic floor load all shift. That's a normal, expected change: not something to push through, and not something to feel behind on if it happens earlier for you than for someone else. If it stops feeling good, that's your cue to dial back the impact, not necessarily to stop moving altogether.

If you weren't running before pregnancy, this isn't recommended as the time to start. High-impact activity is better built up gradually, ideally starting before or well before pregnancy, or postpartum once you've rebuilt your strength and pelvic floor foundation.

Remember, strength training is very effective in maintaining and building muscle during this season, and lower intensity cardio can still help promote cardiovascular health and burn some calories. High intensity cardio is not necessary or recommended to keep you and baby fit and healthy at this time.

Always listen to your body. If something doesn't feel good, don't do it. As always, get clearance from your provider, and let them know what kind of running or high-impact activity you're doing so they can flag anything specific to your situation.

6. What is the pelvic floor and why does it matter so much right now?

The pelvic floor is a group of muscles, ligaments, and connective tissue that forms a hammock-like base at the bottom of your pelvis. It supports your bladder, uterus, and bowel, and plays a central role in core stability, continence, sexual function, and labor and delivery.

During pregnancy, your pelvic floor bears increasing load as your baby grows, up to 60% more pressure than before pregnancy. Strengthening and learning to properly coordinate these muscles now:

Reduces risk of urinary leakage (incontinence) during and after pregnancy
Supports the weight of your growing uterus and baby
Prepares the muscles to lengthen and release effectively during labor and delivery
Supports faster, more complete postpartum recovery
Reduces risk of pelvic organ prolapse
Contributes to core stability and reduced low back and pelvic pain

The foundation of pelvic floor training is something called connection breathing: inhaling to expand and gently release the pelvic floor, then exhaling to gently lift and engage it. It's a simple habit, but it's genuinely one of the most impactful things you can build into your routine during pregnancy.

It's also worth knowing that a healthy pelvic floor isn't just a strong one. A balanced approach includes both strengthening (contracting) and lengthening (releasing) work. An overly tight pelvic floor can cause just as many problems as a weak one.

If you want to start practicing connection breathing or basic pelvic floor exercises now, there are plenty of free resources available online. Reputable pelvic floor physical therapists share guided videos and tutorials on platforms like YouTube and Instagram, and several apps offer free beginner pelvic floor programs. It's a great, low-barrier place to start while you settle into the habit.

If you notice symptoms like leakage, a feeling of heaviness or dragging in the perineum, or difficulty fully emptying your bladder or bowel, that's worth mentioning to your provider. A pelvic floor physical therapist can assess your pelvic floor function directly and is one of the best investments you can make in your recovery and long-term health, during pregnancy and postpartum alike.

7. What are warning signs I should stop and call my provider?

Most day-to-day aches and adjustments during pregnancy are normal, but there are some signs worth paying closer attention to. Think of these in two tiers.

Proceed with caution: modify and check in

Excessive fatigue or feeling unusually out of breath
Symptoms of pelvic floor dysfunction (mild urinary incontinence, a feeling of heaviness or dragging in the perineum)
Mild aches and pains (wrist, knee, low back, hips)
Pain in the front or back of the pelvis: achy, sharp, radiating, or burning
Doming or bulging along the midline of your abdomen

These are worth mentioning at your next check-in and often just mean an exercise needs modifying, not stopping altogether.

Stop immediately and call your provider

Vaginal bleeding
Regular, painful contractions
Amniotic fluid leakage
Shortness of breath before you've even started exerting yourself
Dizziness
A severe, sudden-onset headache
Chest pain
Extreme muscle weakness (affecting your ability to balance or walk normally)
Calf pain or swelling

If you experience any of these red-flag symptoms during or after exercise, stop what you're doing right away and contact your provider. Don't wait to see if it passes.

Postnatal

  
    8. How soon should I be back to my normal exercise routine postpartum? Can I just resume after 6-8 weeks?

Not quite, and this is one of the most common postpartum misconceptions worth clearing up. The "six-week clearance" from your provider is a green light to begin returning to exercise, not a signal that you're back to your pre-pregnancy routine.

Exercise will be minimal for the first 6–8+ weeks postpartum, depending on your birth experience. This early phase is about recovery first. Once you're cleared, you'll ease back into exercise gradually, and it's normal to not be back to your full pre-pregnancy routine until 6–9+ months after birth. That's not a slow timeline, it's the expected one.

Here's why: postpartum recovery isn't a single event, it's a layered process that can take up to a full year. Your body moves through distinct phases: inflammation in the first week or so as your body responds to the physical demands of birth, tissue repair over the next 2–3 weeks (up to 6), and then continued maturation and remodeling of connective tissue for up to a year. That last phase is why exercises that felt easy during pregnancy or before may feel different or harder for a while. That's completely normal and expected, not a sign you're behind.

There's also a lot going on beyond the physical healing. Energy levels are often significantly lower postpartum due to sleep deprivation and, if you're breastfeeding, the added caloric and hormonal demands on your body. All of that is real and factors into your return to movement.

One narrative worth rejecting outright is the pressure to "bounce back" quickly. Your body just did something extraordinary, and it deserves time, grace, and a thoughtful approach to getting back to movement, not a race back to where you were.

9. When can I return to weight training postpartum?

There's no single universal date, since it depends on your recovery, but here's the general framework we work within.

The first 6–8 weeks postpartum are focused entirely on rehab and recovery: protecting the healing your body is doing, not pushing to build strength yet. Gentle movement (short walks, diaphragmatic breathing, light pelvic floor work as tolerated) is appropriate here; everything else waits.

Once you're cleared by your provider, the next phase is rebuilding core and pelvic floor function. Connection breathing and targeted pelvic floor work become the priority, since pelvic floor reconnection can feel more challenging postpartum due to the stress of birth. This is foundational work and skipping it is one of the most common causes of setbacks later on.

Weight training comes after that. Once recovery and pelvic floor rehabilitation are well underway, we shift toward rebuilding strength with functional movements in major muscle groups that support motherhood. For example, squats and lunges (for carrying and holding baby), hip hinges and deadlifts (for bending down safely), rows and carries (for holding, wearing, and feeding baby), with core and pelvic floor strengthening woven throughout.

For most women, this means starting with bodyweight functional movement first, and then gradually adding weight over weeks and months, with a full return to your pre-pregnancy strength routine (or new weighted routine) often not until 6–9+ months postpartum. That timeline may sound abnormally slow, but rushing this phase can lead to setbacks that take longer to resolve than the patience would have. As always, tune into your body, listen to what feels good, and don't rush the progression.

Additionally, finding the time and the energy to add in this movement may be more challenging than expected, so an efficient, effective, and flexible routine should be the focus during this season. Luckily, many existing fitness apps have postpartum programs designed to be exactly this, so you don't need to reinvent the wheel. Alternatively, you can create your own with simple functional movements you can do at home with some bumbells and a mat— strength training doesn’t need to be complicated. Find something you will enjoy and try to make it a habit. Gentle consistency should be the goal (ie: 10–20 minutes 3x per week is better than 60 min 1x per week).

Always get clearance from your provider before resuming weight training, and let them know your birth history and how you're feeling so they can guide the pace that's right for you.

10. When can I return to running or high-impact activity?

Later than weight training, generally, and this is one area worth being especially patient with.

Running, jumping, and other high-impact activities place significant stress and pressure on the pelvic floor, which is still recovering well into the postpartum period. Returning too soon is one of the most common causes of postpartum pelvic floor dysfunction, so it's important to build back pelvic floor strength and overall strength before you return to this level of intensity. That's not because running itself is dangerous, but because your body needs to be ready to absorb that impact.

The general cardio progression looks like this: walking first, then other low-impact activities such as biking or swimming, and then a gradual return to jogging and higher-intensity activity as tolerated and, importantly, as cleared by your provider or pelvic floor physical therapist. There's no fixed week number that applies to everyone here, but general guidance is to first focus on your strength training recovery and pelvic floor rehab. Once those weighted progressions are going well, higher-impact cardio can start to be gradually added in — starting with 1 day per week and adding more only if you experience no signs of pelvic floor dysfunction. This is definitely something to work through with your provider (and ideally a pelvic floor PT) rather than following a generic calendar, if possible.

As always, tune into your body, listen to what feels good, and don't rush the progression. If you notice leaking, heaviness or pressure in the pelvic region, or pain during or after a run, that's a sign to scale back and give your pelvic floor more time before trying again.

11. When will I "get my body back" after giving birth?

You shouldn't feel pressure to "get your body back" right away, or at all. Your body has changed in profound ways, and that's something to be respected.

It took nine months to build your baby. It may take just as long, or longer, to return to your pre-pregnancy weight, and your body may feel different for even longer than that. All of this is normal.

If you're breastfeeding, hormonal fluctuations continue for much longer, and your body may be holding onto weight intentionally to support milk production. This is another reason cutting calories or carbohydrates too aggressively, too quickly isn't a good idea postpartum, since doing so can reduce your milk supply. A general benchmark is not to drop below 2,000 kcal/day, though this is meant as a check against, not something to obsess over.

The most helpful approach is to focus on healing and nourishing your body with whole foods and intentional movement —some strength training, walking, and movement throughout the day goes a long way. If you're eating mindfully, fueling your body well, and working to rebuild your strength and endurance gradually, the rest tends to follow. Trust the process, and most importantly, trust your body.

12. How do I know if I have diastasis recti?

Diastasis recti is a separation of the abdominal muscles along the midline of your belly (the linea alba). It's incredibly common during and after pregnancy as your abdominal wall stretches to accommodate your growing baby.

The main visual sign to watch for is bulging, coning, or doming along that midline. You might notice it when you sit up from lying down, during a crunch-like movement, or even just standing and bearing down.

You can also do a simple self-check: lie on your back with knees bent, feet flat on the floor. Support your head and neck with one hand, and place your other hand along your abdominal midline near your belly button, fingers pointing toward your toes. Gently lift your head and shoulders as if starting a sit-up, and feel for a gap between your right and left abdominal muscles. A separation of two or more finger-widths, or a noticeable softness or depth where your fingers sink in rather than meeting resistance, can indicate diastasis recti⁴⁵. It's worth checking a few spots (above the belly button, at the belly button, and below toward the pubic bone), since separation can be more pronounced in one area than another.

That said, self-checks have real limits. This is exactly the kind of thing a pelvic floor physical therapist is trained to assess properly. They can tell you not just whether you have diastasis recti, but how significant it is and what specific rehab will help close the gap and restore function.

If you do notice signs of diastasis recti, the good news is that pelvic floor and deep core work are closely connected. The recommended starting point is usually working on breathing and pelvic floor connection (the same connection breathing covered earlier), since proper breath and pressure control lay the foundation for safe healing. From there, treatment progresses to gentle, targeted deep core activation, while avoiding crunches or sit-ups in the early stages⁶⁷. This is another great reason connection breathing is worth building into your routine early: it's not just prep for labor, it's also protective for your core.

13. Do I need to see a pelvic floor PT?

It’s not mandatory to have a safe pregnancy or postpartum recovery, but it's highly recommended as one of the best investments you can make in your recovery and long-term health, during pregnancy and postpartum.

A pelvic floor physical therapist can assess your pelvic floor function directly (something no self-check or symptom checklist can fully replace), catch and address issues early before they become bigger problems, and give you an individualized plan rather than general guidance. This is especially valuable because pelvic floor dysfunction is common but not something you have to just accept as inevitable. Proactive care makes a real difference and can help set your body up to support a subsequent pregnancy soon after if that is a goal you have.

That said, it becomes more of a should rather than a nice-to-have if you're noticing any of the following:

Urinary, fecal, or gas incontinence
Difficulty fully emptying your bladder or bowel
Increased urgency or frequency with your bladder or bowel
Pain with intercourse or penetration
A feeling of heaviness or dragging in the perineum
A sense that something is "falling out" of the vagina
Difficulty inserting a tampon
Signs of diastasis recti (covered in the previous question)

If any of these sound familiar, please don't just push through it or assume it's a normal part of motherhood you have to live with. Many of these symptoms respond really well to targeted pelvic floor PT.

Even without symptoms, seeing a pelvic floor PT proactively, ideally once during pregnancy and again postpartum, is one of the highest-value things you can do to set yourself up for a smoother recovery and prevent issues before they start. Some health insurance plans cover pelvic floor PT visits, so it's worth checking with your insurance provider before assuming it's an out-of-pocket cost.

14. What are some warning signs I should stop and call my provider postpartum?

Most postpartum aches and adjustments are a normal part of recovery, but some signs deserve closer attention. Think of these in two tiers.