Is It Safe to Exercise During Pregnancy? Everything You Need to Know About Pre and Post Natal Fitness

Yes! For most women with uncomplicated pregnancies, exercise is not only safe but actively recommended. Here's what the research says, and why having a pre and post natal trained coach makes all the difference.

Why Training Before and After Pregnancy Matters More Than You Think

At Gym 444, every single one of our coaches holds a pre and post natal training qualification. Here's why that matters — and why starting before you're pregnant is one of the best things you can do.

Should I Exercise Before Getting Pregnant?

Most people think about fitness during pregnancy. But what about before?

Building a regular exercise habit before you fall pregnant sets your body up in a really meaningful way. Women who do regular, moderate exercise get pregnant quicker than those who don't exercise regularly, according to Tommy's, a leading UK pregnancy charity. And once you are pregnant, a body that's already used to moving finds it much easier to keep going.

Your heart needs to pump up to 50% more blood during pregnancy — so getting your cardiovascular fitness up before you conceive is genuinely useful preparation.

Moderate exercise also helps your body in ways that support conception — it helps regulate hormones like insulin and cortisol, supports more regular ovulation, and improves blood flow to your reproductive organs.

The goal isn't to be at peak fitness before you fall pregnant. It's simply to build a consistent routine so that continuing to exercise during pregnancy feels normal — not like a challenge.

Is It Safe to Exercise During Pregnancy?

Yes — for most people, absolutely.

The Royal Australian and New Zealand College of Obstetricians and Gynaecologists (RANZCOG) highlights that women without contraindications should participate in regular aerobic and strength conditioning exercise during pregnancy, and that there is no evidence that regular exercise during an uncomplicated pregnancy is detrimental to the mother or foetus.

The Australian Government Department of Health recommends that if you and your baby are healthy, you should aim to be active most days — preferably every day — building to 2.5 to 5 hours of moderate intensity physical activity per week, plus muscle strengthening activities at least 2 days per week.

Not sure what "moderate intensity" feels like? Try the 'talk test' — you should be able to carry on a conversation during moderate intensity exercise, but not sing.

What Are The Benefits Of Exercising During Pregnancy?

The research here is strong. Physical activity during pregnancy is safe, has health benefits for both the woman and her unborn child, and may reduce the risks of some pregnancy-related complications, according to the Australian Guidelines for Physical Activity in Pregnancy and Postpartum.

Specifically, regular exercise during pregnancy has been shown to:

• Support mental health. Prenatal exercise has demonstrated significant benefits in reducing symptoms of antenatal depression and anxiety, with combined approaches showing the most pronounced results.

• Reduce complications. Prenatal exercise substantially reduces the risk of multiple adverse outcomes, including preterm birth and complications related to gestational diabetes.

• Reduce diastasis recti. Antenatal exercise has been shown to reduce the incidence of diastasis recti — the separation of abdominal muscles along the midline — by 35%.

When Can I Exercise After Giving Birth?

The postnatal period — sometimes called the "fourth trimester" — is just as important to get right.

Pregnancy and birth place significant demands on your body. Two areas that need specific attention are the pelvic floor and the core.

Pregnancy and childbirth can weaken the pelvic floor muscles, and when these become weak, you may experience urine leakage or pelvic organ prolapse. Strengthening these muscles after birth with targeted exercises can help prevent and treat these postpartum complications.

After having a baby, the pelvic floor muscles are weak and injured in most women. Instruction and supervision on how to perform a correct pelvic floor muscle contraction are necessary, especially in women who did not train these muscles before pregnancy and birth.

When it comes to returning to exercise, a gradual return to recommended levels of activity is generally safe after your 6-week postnatal health check, but this may vary depending on your individual circumstances.

This is where having a knowledgeable coach matters. Referral to appropriate support both in the prenatal and postnatal period can reduce the prevalence of symptoms such as musculoskeletal pain, diastasis recti, and pelvic floor dysfunction, which may otherwise interfere with physical activity and recovery.

You Don't Have to Figure This Out Alone

At Gym 444, every coach is trained in pre and post natal fitness. That means whenever you walk through our doors — whether you're trying to conceive, currently pregnant, or recovering after birth — you'll be working with someone who understands what your body is going through and how to train safely around it.

No guessing. No generic programs. Just coaching that meets you where you are.

Come in and have a chat. We'd love to help you build something that works for you.

Sources:

1. Tommy's Pregnancy Charity — Being active when trying to conceive: https://www.tommys.org/pregnancy-information/planning-a-pregnancy/are-you-ready-to-conceive/being-active-when-trying-conceive

2. Australian Government Department of Health — Recommendations for physical activity in pregnancy: https://www.health.gov.au/topics/physical-activity-and-exercise/pregnancy

3. RANZCOG guidelines (via Malvern Physiotherapy): https://malvernphysio.com.au/exercising-safely-during-pregnancy/

4. Australian Guidelines for Physical Activity in Pregnancy and Postpartum (Brown et al., 2022, Journal of Science and Medicine in Sport): https://www.jsams.org/article/S1440-2440(22)00068-8/abstract

5. Prenatal exercise and depression/anxiety — systematic review (ScienceDirect, 2025): https://www.sciencedirect.com/science/article/abs/pii/S0165032725018804

6. Prenatal exercise and neonatal outcomes — meta-analysis (Frontiers, 2025): https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11997568/

7. The Bloom Method — pre-pregnancy core exercise and diastasis recti: https://www.thebloommethod.com/educational-blogs/pre-pregnancy-exercises-to-build-core-strength-and-boost-fertility

8. Postpartum exercise guidance (Physiopedia): https://www.physio-pedia.com/Current_Guidelines_and_Recommendations_for_Postnatal_Exercise

9. Maximising Recovery in the Postpartum Period (International Journal of Sports Physical Therapy): https://ijspt.scholasticahq.com/article/37863