Training during pregnancy is encouraged
Outdated advice told pregnant women to rest. Current ACOG guidelines (American College of Obstetricians and Gynecologists) explicitly recommend regular exercise throughout uncomplicated pregnancies.
Benefits: better mood, less back pain, easier labor and delivery, better postpartum recovery, lower risk of gestational diabetes and preeclampsia.
The general rules
- 150 minutes of moderate-intensity activity per week
- Can include resistance training
- Should be cleared by OB/GYN before starting (especially for clients with high-risk pregnancies)
- Stop if: bleeding, dizziness, severe shortness of breath, chest pain, persistent contractions, calf pain or swelling
What to modify (and when)
First trimester (weeks 1-13): Most clients can continue what they were doing. Adjust intensity if nausea or fatigue limits performance. Second trimester (weeks 14-27): Modifications begin.- Avoid supine (flat on back) positions after ~16 weeks — vena cava compression
- Reduce single-leg work as belly grows and balance shifts
- Lighter loads, more reps generally feel better
- Avoid heavy Valsalva (breath holding) on heavy lifts
- No exercises lying on back
- Reduce range on squats and deadlifts (depth limits as belly grows)
- Many clients prefer machines and assisted exercises
- Walking, swimming, prenatal yoga shine here
- Skip exercises with fall risk
What to keep
- Strength training (lighter loads, higher reps)
- Resistance bands and machines
- Aerobic exercise within tolerance
- Pelvic floor work (Kegels, breathing drills)
- Posture work (counteracts forward-leaning posture)
What to avoid
- Contact sports
- Activities with fall risk (skiing, horseback riding, advanced cycling)
- Hot environments / hot yoga
- Scuba diving
- Heavy Valsalva-dominant lifts in third trimester
- Plain belly-down positions in second/third trimester
Postpartum return to training
The fourth trimester (weeks 0-12 after birth) is real. The body needs time.
0-6 weeks: Walking. Breathing. Pelvic floor reconnection (gentle). NO impact, NO heavy loading. Vaginal vs C-section affects timing — C-section recovery is longer. 6 weeks: Clearance from OB/GYN. Most cleared for general activity. Begin pelvic floor and core rehab. 6-12 weeks: Gradual rebuild. Bodyweight and light DB. Watch for diastasis recti (abdominal separation). If gap >2 fingers width persists, refer to a pelvic floor PT. 12 weeks +: Resume strength training. Postpartum athletes often return to pre-pregnancy strength within 3-6 months with intelligent programming.Diastasis recti
Most pregnancies cause some degree of abdominal separation. Most heal in the first months postpartum. Signs of persistent issue:
- Visible doming or coning of the belly during effort
- Gap >2 fingers width 6+ weeks postpartum
- Low back pain
- Pelvic floor issues
The 90-day postpartum protocol (sample)
Weeks 0-2: Diaphragmatic breathing, pelvic tilts, gentle walks. Weeks 2-6: Add light walking, ankle pumps, gentle pelvic floor work. Weeks 6-10 (post-clearance): Bodyweight squats, glute bridges, bird dogs, side planks, dead bugs. Light DB work. Weeks 10-12: Begin loaded squats, RDLs, rows, presses. Watch core response. Weeks 12+: Standard programming, mindful of any persistent issues.TL;DR
ACOG endorses exercise during uncomplicated pregnancy. Modify as needed across trimesters. Avoid supine positions after week 16. Postpartum return is gradual — at minimum 6 weeks. Watch for diastasis recti. Refer to pelvic floor PT for persistent issues.