Exercises to Modify or Skip in Pregnancy
SaveThe short list of exercises to avoid in pregnancy includes contact sports, high-fall-risk activities, scuba diving, hot yoga or extreme heat, and long stretches lying flat on your back after the first trimester. According to ACOG, most other moves just need modifying, so smart adaptation matters more than a long ban list.
Last updated: July 2026
Which exercises should you actually avoid while pregnant?
Only a short, specific set of activities is genuinely off-limits in an otherwise healthy pregnancy. ACOG names a handful to avoid: contact sports like soccer, basketball, and hockey; activities with a high fall risk such as downhill skiing, off-road cycling, and horseback riding; scuba diving, because the pressure changes can harm the fetus; and exercising at high altitude if you are not already acclimatized 1Ref 1American College of Obstetricians and Gynecologists (2020).Physical Activity and Exercise During Pregnancy and the Postpartum Period: ACOG Committee Opinion, Number 804.ACOG list of activities to avoid in pregnancy (contact sports, high-fall-risk activities, scuba diving, hot yoga, high altitude), the 150-minute weekly activity target, and conditions and warning signs that call for stopping..
Hot yoga and hot Pilates are also discouraged because of the risk of overheating. Beyond that list, most mainstream exercise, including the recommended 150 minutes of weekly aerobic activity in roughly 20 to 30 minute sessions, is considered safe and beneficial for uncomplicated pregnancies 1Ref 1American College of Obstetricians and Gynecologists (2020).Physical Activity and Exercise During Pregnancy and the Postpartum Period: ACOG Committee Opinion, Number 804.ACOG list of activities to avoid in pregnancy (contact sports, high-fall-risk activities, scuba diving, hot yoga, high altitude), the 150-minute weekly activity target, and conditions and warning signs that call for stopping..
Why avoid lying on your back and getting overheated?
Extended time lying flat on your back and getting overheated are two of the most common things to modify, for specific physiological reasons. After about the first trimester, lying flat for long periods lets the growing uterus press on the vena cava, a large vein, which can drop blood pressure and cause dizziness, and propping up on an incline solves it for most people.
Overheating is the reason hot yoga, saunas after exercise, and long workouts in high heat and humidity are discouraged, especially in early pregnancy when the fetus is most sensitive. Staying hydrated, exercising in cooler settings, and easing off if you feel flushed or lightheaded keep core temperature in check.
What needs modifying rather than eliminating?
Many exercises stay on the table with small adjustments rather than being cut entirely. Traditional abdominal crunches and full sit-ups are often swapped for pelvic floor and deep-core work as the belly grows, since intense flexion can strain an already-stretched abdominal wall.
Maximal lifts and prolonged breath-holding give way to moderate loads with steady breathing, and high-impact moves may be softened if you notice leaking or pelvic heaviness; antenatal pelvic floor muscle training lowers the risk of urinary incontinence, according to a Cochrane review 2Ref 2Woodley SJ, Lawrenson P, Boyle R, et al. (2020).Pelvic floor muscle training for preventing and treating urinary and faecal incontinence in antenatal and postnatal women.Cochrane review that antenatal pelvic floor muscle training reduces the risk of urinary incontinence, supporting modification of high-impact moves when leaking occurs.. Running, cycling on a stationary bike, swimming, and strength training generally continue with tweaks. If pelvic floor exercises alone aren't enough, a physical therapist can help.
Does the avoid list change by trimester or life stage?
The avoid list grows slightly as pregnancy advances, and the underlying caution about impact and balance echoes at other life stages. In the first trimester, most restrictions are about heat and contact or fall risk; by the second and third trimesters, supine positions, high-fall-risk balance work, and anything straining the core get added as the bump and joint laxity increase.
The same instincts about protecting balance and pelvic floor apply to a teen athlete returning from injury and to a woman in the perimenopausal years, when falls and bone loss carry more weight after the estrogen decline. After delivery, high-impact activity and heavy core work usually wait until pelvic recovery and any leaking settle, often several weeks, to protect healing tissue.
When a pregnancy workout needs a clinician's review
Certain symptoms and pregnancy conditions are the real reasons to stop a workout and check in, more than any single banned exercise. Warning signs that mean stopping and seeking care include vaginal bleeding, fluid leaking, regular painful contractions, chest pain, calf pain or swelling, dizziness, or a headache that won't ease.
Conditions such as preeclampsia, a shortened cervix, placenta previa, poorly controlled heart or lung disease, or carrying triplets or more can change what is safe, and ACOG treats these as reasons to modify or avoid vigorous exercise 1Ref 1American College of Obstetricians and Gynecologists (2020).Physical Activity and Exercise During Pregnancy and the Postpartum Period: ACOG Committee Opinion, Number 804.ACOG list of activities to avoid in pregnancy (contact sports, high-fall-risk activities, scuba diving, hot yoga, high altitude), the 150-minute weekly activity target, and conditions and warning signs that call for stopping.. A prenatal visit can personalize the list 3Ref 3Office on Women's Health (U.S. HHS) (2025).Prenatal care.Prenatal care overview describing routine visits where a personalized list of safe and unsafe activities can be reviewed., and medication safety questions fit into the same conversation. Gale can help you prepare those questions.
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Warning signs to stop exercising in pregnancy
- —Vaginal bleeding or fluid leaking during or after exercise is a reason to stop and seek same-day obstetric care.
- —Regular painful contractions, chest pain, or a headache that won't ease warrant urgent evaluation.
- —Calf pain, swelling, or redness in one leg can signal a clot and is a reason to seek prompt medical care.
- —Feeling faint, severely short of breath at rest, or unusually dizzy is a reason to stop and contact your clinician.
Heavy vaginal bleeding, leaking fluid, regular painful contractions, chest pain, severe shortness of breath, or one-sided calf pain and swelling during or after exercise need urgent assessment — contact your obstetric clinician the same day, go to labor and delivery, or head to the nearest emergency room.
This article is general health education, not personal medical advice. Which exercises are safe in your pregnancy depends on your history and any complications, and should be guided by your obstetric clinician.
References
- 1.American College of Obstetricians and Gynecologists (2020). Physical Activity and Exercise During Pregnancy and the Postpartum Period: ACOG Committee Opinion, Number 804. Obstetrics & Gynecology. doi:10.1097/AOG.0000000000003772 ✓ACOG list of activities to avoid in pregnancy (contact sports, high-fall-risk activities, scuba diving, hot yoga, high altitude), the 150-minute weekly activity target, and conditions and warning signs that call for stopping.
- 2.Woodley SJ, Lawrenson P, Boyle R, et al. (2020). Pelvic floor muscle training for preventing and treating urinary and faecal incontinence in antenatal and postnatal women. Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD007471.pub4 ✓Cochrane review that antenatal pelvic floor muscle training reduces the risk of urinary incontinence, supporting modification of high-impact moves when leaking occurs.
- 3.Office on Women's Health (U.S. HHS) (2025). Prenatal care. Office on Women's Health (womenshealth.gov), U.S. HHS. link ✓Prenatal care overview describing routine visits where a personalized list of safe and unsafe activities can be reviewed.
3 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — every citation independently verified. Editorial policy