Reference

Pregnancy-Safe Exercises

Evidence-anchored pregnancy exercise guidance — what to do, what to modify, and when. Sources: ACOG, NHS, RCOG, Cochrane, Evidence-Based Birth.

Each exercise has trimester-specific modifications — what changes in the first, second, and third trimester. Open any exercise to read all three.

Cardio

Heart-rate work that scales across pregnancy — walking, swimming, cycling.

  • low intensityWalkingLow-impact cardio that scales with pregnancy comfort. Gold standard recommendation across all trimesters.
  • moderate intensitySwimmingBuoyancy reduces joint load; full-body work without overheating.
  • moderate intensityStationary CyclingCardio without balance risk; bike-fit becomes critical as belly grows.
  • low intensityWater AerobicsClass-based water cardio, especially great for swelling + back pain late pregnancy.
  • moderate intensityDancingMood-boosting cardio with built-in modifications; balance is the watch-out.
  • high intensityRunningFine if pre-pregnancy; new runners should not start. Pelvic floor stress climbs each trimester.
  • high intensityHigh-Impact AerobicsJumping + plyo: scale to low-impact past trimester 1; balance + pelvic-floor risk rises.

Strength

Resistance training adapted for changing body — modify load, position, and bracing.

  • moderate intensitySquatsLower-body strength + birth prep (pelvis opening). Form drift is the trimester-3 risk.
  • high intensityDeadliftsPosterior-chain strength; load + bracing pattern need adjustment as core changes.
  • moderate intensityLungesSingle-leg strength; balance demand grows trimester to trimester.
  • moderate intensityRowsCounters the postural shift forward; supports later breastfeeding posture.
  • moderate intensityOverhead PressShoulder + core stability; rib-flare and posture cue matter through pregnancy.
  • moderate intensityPlanksCore stability; modify to incline as the belly grows to protect linea alba.
  • low intensityGlute BridgesPosterior-chain strength + pelvic-floor coordination; spine flat by trimester 2.
  • low intensityBird DogsCore + spine stability with minimal load; staple through all trimesters.

Mobility

Joint and spine mobility — back pain, sciatica, and SPD relief.

  • low intensityCat-CowSpinal mobility + back pain relief; safe through all three trimesters.
  • low intensityHip CirclesPelvic mobility for birth prep; introduce on a stability ball trimester 3.

Flexibility

Stretching with awareness of relaxin-related joint laxity — avoid overstretching.

  • low intensityPrenatal YogaTrimester-specific flow; relaxin makes joints lax — over-stretching is the watch-out.
  • low intensityFigure-Four StretchGlute + piriformis stretch; eases sciatica common in trimester 2-3.
  • low intensityButterfly StretchInner-thigh + hip-opener; frequently cited as a birth-prep staple.

Pelvic Floor

Targeted pelvic floor work — preparation for labor and postpartum recovery.

  • low intensityKegelsPelvic-floor activation; balance with full release — over-tight pelvic floor is its own problem.
  • low intensityPelvic TiltsLower back relief + core activation; safe through all trimesters.
  • low intensityHappy Baby PosePelvic-floor release; watch supine position past 20 weeks.

Mind–Body

Breath, meditation, mindfulness — labor preparation and stress regulation.

  • low intensityDiaphragmatic BreathingFoundation skill for labor; daily practice changes baseline tone.
  • low intensityMeditationStress regulation impacts gestation; even 5 minutes daily moves the needle.

This is general wellness information drawn from ACOG, NHS, RCOG, Cochrane, and Evidence-Based Birth — not medical advice. Always check with your provider before starting or modifying exercise during pregnancy. 25 exercises × 3 trimesters = 25 pages.