Prenatal Workout Plan: Safe Exercise in Every Trimester

Most of the advice you get about exercise in pregnancy is about what to stop doing. Don’t lift that. Don’t lie on your back. Don’t get your heart rate up. Some of it is outdated, and very little of it tells you what a week of training should actually look like.

This prenatal workout plan starts from the Canadian guideline and works backwards to a routine you can do at home, with a few dumbbells, a resistance band and a sturdy chair. It isn’t medical advice. Your midwife, family doctor or obstetrician has the final word on what’s right for your pregnancy, and the plan below assumes they’ve said yes to exercise. Trainer Pro’s prenatal personal training follows the same rule.

What the Canadian Guideline Actually Says

In 2019 the Society of Obstetricians and Gynaecologists of Canada and the Canadian Society for Exercise Physiology published a joint guideline for physical activity throughout pregnancy. It’s more encouraging than most people expect. Every pregnant woman without a contraindication should be active, including women who weren’t active before they got pregnant.

The targets are specific. Aim for at least 150 minutes of moderate-intensity activity a week, spread over at least three days, though moving every day is encouraged. Mix aerobic work with resistance training. Yoga or gentle stretching can be added on top. Pelvic floor exercises can be done daily to lower the risk of leaking urine. And if lying flat on your back makes you light-headed, nauseous or unwell, change the position.

That’s the whole framework. Everything else in this article is about fitting it into a real week.

Before You Start: Clearance and the Talk Test

Talk to your care provider first, especially if you have a condition that changes the picture. The guideline lists conditions where strenuous exercise is off the table, such as ruptured membranes, preterm labour, persistent unexplained bleeding, placenta previa after 28 weeks and preeclampsia. Others, such as gestational hypertension, a history of preterm birth or a twin pregnancy after 28 weeks, mean the trade-offs need a conversation before you train hard. If you’re not sure which group you’re in, ask before you start.

Moderate intensity is easier to judge by feel than by heart rate. You should be breathing harder but still able to hold a conversation. If you can sing, push a little more. If you can only get out a few words at a time, ease off.

A Prenatal Workout Plan by Trimester

The structure stays the same all the way through: some strength work, some cardio, daily pelvic floor practice. What changes is how you set up each exercise, how much range you use and how you feel on the day.

First Trimester (Weeks 1 to 13)

For many women this is the hardest stretch to train through, and it has nothing to do with the bump. Fatigue and nausea can wipe out whole days. Keep doing what you were doing if you feel up to it, and on bad days count a 20-minute walk as a win.

If you’re wondering whether you can do squats at seven weeks pregnant, the answer for most women with an uncomplicated pregnancy is yes. Nothing about squatting, lunging or carrying is suddenly unsafe in early pregnancy. The changes come later and they’re mostly about position and balance.

Second Trimester (Weeks 14 to 27)

Energy usually comes back, and this is often the best window for building strength. Two things start to matter. Your centre of gravity shifts forward, so single-leg work and anything with a quick change of direction gets less stable. And as the uterus grows, some women feel dizzy lying flat. If that’s you, move floor exercises to an incline: a bench set at an angle, a stack of pillows, or a side-lying version.

Third Trimester (Weeks 28 to 40)

Shorter ranges, slower tempo, more support. Squats go to a chair or box. Lunges become split squats holding the counter. Many women swap some cardio for walking or swimming because anything bouncy feels uncomfortable. Breathing and pelvic floor work start to pay off here, and a lot of the session can be about moving well rather than moving hard. After the birth, our guide to returning to exercise after giving birth picks up from there.

A Sample Pregnancy Workout Week

Here’s one way to hit 150 minutes without a gym membership. Move the days around to fit your schedule.

If 30 minutes feels like too much on a given day, two 15-minute blocks count the same. The guideline itself says there will be weeks when fatigue makes the full target impossible, and that doing what you can is the point.

A Simple Pregnancy Strength Workout

Six exercises, two or three sets of 8 to 12, with a minute of rest between sets. Choose a weight you could lift a few more times at the end of each set. Breathe out on the hardest part of every rep and don’t hold your breath.

1. Squat to a Chair

Stand in front of a chair, holding a dumbbell at your chest. Sit back until you lightly touch the seat, then stand. The chair sets your depth and keeps it consistent as your balance changes. In the third trimester, widen your stance to make room for the bump.

2. Incline Push-Up

Hands on the kitchen counter, body in a straight line, lower your chest towards the edge and press away. The higher the surface, the easier it is. This replaces floor push-ups once lying face-down stops being an option.

3. Band Row

Loop a resistance band around a door handle or a sturdy post, step back and pull your elbows towards your ribs. Pregnancy pulls the shoulders forward and rows are the most direct way to push back against that.

4. Hip Bridge, Then Incline Bridge

Lie on your back with knees bent and push your hips up by squeezing your glutes. Once lying flat stops feeling comfortable, do the same movement with your shoulders on a couch or bench so your upper body stays raised.

5. Side-Lying Leg Raise

Lie on your side with your head supported, lift the top leg a few inches and lower it slowly. It strengthens the muscles on the side of the hip that keep your pelvis steady when you walk, and it can be done in every trimester.

6. Suitcase Carry

Hold one dumbbell at your side and walk slowly for 20 to 30 steps without leaning, then switch hands. This is the closest thing in the plan to what you’ll do every day once the baby arrives: carrying a car seat, a diaper bag and groceries, usually on one side.

Pelvic Floor Exercises During Pregnancy

The pelvic floor carries more load with every week of pregnancy, and these exercises are the one part of the plan the guideline suggests doing every day. To find the muscles, imagine stopping the flow of urine and holding in gas at the same time. That squeeze and lift is the contraction. Don’t actually practise by stopping urine, and don’t squeeze your glutes or hold your breath.

Try 10 slow contractions held for up to 10 seconds, each followed by a full relaxation, then 10 quick squeezes. The relaxation matters as much as the squeeze, because the pelvic floor has to let go during birth. If you can’t feel anything, or you’re already leaking, a pelvic health physiotherapist can check your technique.

Pregnancy-Safe Core Exercises

Core training doesn’t stop in pregnancy. It changes. Bird dogs, side planks from the knees, dead bugs on an incline and the carry above all train the deep abdominal muscles without heavy pressure on the midline. Pair each rep with a slow breath out.

Watch your belly while you work. If you see a ridge or dome running down the middle, the exercise is putting more pressure on the abdominal wall than it can handle right now. Swap it for an easier version and mention it at your next appointment.

Exercises to Avoid During Pregnancy

The guideline’s list is short. Avoid activities with physical contact or a real risk of falling, such as hockey, soccer, downhill skiing or horseback riding. Skip scuba diving. Avoid exercising in excessive heat, especially when it’s also humid, so a hot yoga class or a midday run in a Toronto July heat wave is a bad idea. And if you live at low altitude, don’t exercise above 2,500 metres.

Plenty of things aren’t on that list. Running, lifting, cycling on a stationary bike, swimming and most fitness classes can usually continue, with adjustments as your body changes.

Can You Lift Weights While Pregnant?

Yes. Resistance training is part of the guideline, not an exception to it. The real question is how heavy, and that depends on what you were lifting before. A woman who was deadlifting before pregnancy can often keep training with modified loads. Someone new to weights should start light and build slowly.

If you were lifting heavy before, talk the specifics through with your care provider rather than relying on a general rule. Whatever the weight, avoid holding your breath and straining.

Signs to Stop and Call Your Care Provider

Stop exercising and get medical advice if you notice any of these:

• shortness of breath that doesn’t settle with rest
• severe chest pain
• regular, painful contractions
• vaginal bleeding
• a steady leak of fluid from the vagina
• dizziness or faintness that doesn’t settle with rest

When a Prenatal Trainer Helps

A trainer is most useful when the rules keep changing. What worked at week 12 needs adjusting at week 24, and again at week 34. Someone watching every rep can make those changes as they come up instead of leaving you to guess.

Trainer Pro’s prenatal and postpartum personal training happens at your home or in your building’s gym, so there’s no driving across the city when you’re exhausted or nauseous. Sessions follow your care provider’s guidance, and you can ask for a female trainer when you book. The first session is free, so you can try it before committing to anything.