One of the most common questions I get from women who find out they’re pregnant is: “Should I stop training?” The short answer is no. The longer answer is: keep training, but let’s be smart about how.
I hold a pre and post-natal training certification because this stuff matters. Training during pregnancy has enormous benefits, but it needs to be modified as your body changes. Generic gym programs don’t cut it. You need a trainer who understands what’s happening physiologically and can adjust accordingly.
Why Training During Pregnancy Is Important
Pregnancy is not an illness. It’s a demanding physical event that your body is designed to handle. And like any demanding physical event, being stronger and fitter going into it makes the experience better.
Research shows that women who exercise regularly during pregnancy experience:
- Reduced risk of gestational diabetes
- Lower rates of pre-eclampsia
- Better weight management
- Improved mood and reduced anxiety
- Shorter labour and easier delivery
- Faster post-natal recovery
That’s not a small list. Training during pregnancy isn’t a luxury. It’s preparation for one of the most physically demanding experiences of your life.
What Changes
Your body goes through massive changes during pregnancy, and your training needs to respect that. Here’s what we modify and why:
First Trimester (Weeks 1-12): Fatigue and nausea can be intense. We reduce volume and intensity if needed, but maintain movement. Most exercises are still fine. This is about listening to your body, not pushing through for the sake of it.
Second Trimester (Weeks 13-26): Energy usually returns, but the belly is growing. We avoid exercises lying flat on your back (supine) after about week 16, as the weight of the uterus can compress the vena cava. We also start modifying core exercises. No more crunches or sit-ups. Focus shifts to deep core stability work.
Third Trimester (Weeks 27-40): Everything gets modified more. Lower intensity, shorter sessions, focus on mobility, breathing, and maintaining strength in the muscles that’ll help with delivery (pelvic floor, glutes, deep core). High-impact exercises come out. Balance-heavy exercises get adjusted.
What’s Safe
- Walking and light jogging (if you were running before pregnancy)
- Bodyweight squats and lunges
- Light to moderate resistance training
- Swimming and aqua fitness
- Modified group training with a knowledgeable coach
- Pelvic floor exercises (every single day)
- Stretching and mobility work
What to Avoid
- Contact sports or activities with fall risk
- Exercises lying flat on your back after 16 weeks
- Heavy lifting at maximal effort
- High-impact jumping (especially later in pregnancy)
- Hot yoga or training in extreme heat
- Exercises that cause abdominal coning (visible ridge along the midline)
- Any exercise that causes pain, pressure, or leaking
Every Pregnancy Is Different
This is crucial. What works for one woman in her second trimester might not work for another. Some women train comfortably until week 38. Others need significant modifications by week 20. Both are normal.
The key is having a trainer who understands the differences, watches for red flags, and adjusts the program in real time. A pre-natal certification means I know what to look for, what questions to ask, and when to refer back to your obstetrician or midwife.
Don’t Wait Until After
The best time to start training is before you’re pregnant. The second best time is now. A strong body handles pregnancy better, recovers faster, and gives you energy when you need it most.
If you’re pregnant and want to keep training safely, or you’re planning to start a family and want to build a strong foundation, come talk to us. We’ll build a program that works for you and your baby.
