🤰 General information only: this article does not give medical advice and does not tell any individual reader what exercise to do. Every pregnancy is different, so please speak to your own clinician or midwife before starting, changing, or continuing any activity.
The first trimester is roughly the first three months of pregnancy. It is often a time of big hormonal change, tiredness, and nausea, and what feels manageable can vary a great deal from day to day.
That variation is normal to talk about, but it is not a reason to push through discomfort. If something feels wrong, stopping and asking for advice is the safer choice.
Why clinician or midwife clearance comes first 🤍
Guidance from health services generally describes movement in pregnancy as suitable for many people with uncomplicated pregnancies, while stressing that this is not true for everyone.
Your clinician or midwife knows your medical history, your pregnancy so far, and any complications or risk factors that change the picture. That personal knowledge is something a general article can never replace.
It is especially important to ask first if you have had vaginal bleeding, a previous pregnancy complication, a heart or lung condition, severe anaemia, a low-lying placenta, or any other condition your maternity team is monitoring.
If your maternity team has told you to avoid exercise, or to limit it in a particular way, their direction takes priority over anything you read online.
Movement types commonly discussed in pregnancy guidance 🚶♀️
When health guidance talks about staying active in pregnancy, it commonly mentions everyday, lower-impact types of movement rather than intense or high-risk training.
Walking is the example that comes up most often, because it can be fitted into daily life and adjusted easily. Swimming and other water-based activity are also commonly mentioned, as the water supports body weight.
Gentle yoga and Pilates classes designed for pregnancy are commonly discussed too, as are stationary cycling and everyday activity such as housework and gardening.
These are mentioned here only as types of movement that guidance commonly discusses. This article does not recommend any one of them for you, and it does not describe how to perform them.
If you join a class, guidance commonly advises telling the instructor that you are pregnant and how many weeks pregnant you are, and checking that the instructor is suitably qualified.
Pelvic floor discussion is also common in pregnancy guidance. Rather than giving instructions here, ask your midwife or a women’s health physiotherapist about what, if anything, is appropriate for you.
How guidance commonly describes effort and comfort 🌿
Guidance often describes moderate activity in general terms, such as movement that raises your breathing a little while still allowing you to hold a conversation comfortably.
That description is a general way of talking about effort, not a target to hit. Feeling comfortable matters more than reaching any particular level.
Staying hydrated, avoiding overheating, and wearing comfortable clothing are practical points that guidance commonly raises. Avoiding strenuous activity in hot weather is also commonly advised.
Rest is part of the picture too. In the first trimester especially, tiredness and nausea can make rest the right choice on a given day, and that is not a failure.
Warning signs: stop and seek care 🛑
Stop what you are doing and seek advice from your clinician, midwife, or maternity unit promptly if you notice any of the following during or after activity.
- Vaginal bleeding
- Fluid leaking or gushing from the vagina
- Chest pain
- Dizziness or feeling faint
- Breathlessness before exertion, or severe breathlessness
- Headache
- Calf pain or swelling
- Abdominal or pelvic pain
- Regular, painful contractions
- Muscle weakness that affects your balance
Do not try to work through a warning sign, and do not simply switch to a lighter activity and carry on. A warning sign is a reason to stop and get checked.
If a symptom is severe — for example heavy bleeding, severe breathlessness, or chest pain — seek urgent care rather than waiting for a routine appointment.
Activities commonly advised against, or needing caution ⚠️
Some activities are commonly advised against in pregnancy, or described as needing particular caution and clinician direction. They are listed here in general terms only.
- Contact sports, where a blow to the abdomen is possible
- Activities with a high risk of falling, such as horse riding, downhill skiing, gymnastics, surfing, and off-road cycling
- Scuba diving, and activity at very high altitude or under unusual pressure
- Hot yoga and exercising in excessive heat, where overheating is a risk
- Heavy maximal lifting and pushing to exhaustion
- Holding your breath during exertion
Lying flat on your back for long periods is also commonly raised as a caution later in pregnancy, when the growing uterus can affect blood flow. Sources differ on the exact week this becomes relevant, so ask your clinician rather than relying on a single week number.
Standing still for long periods can also be uncomfortable, and guidance commonly suggests avoiding it where possible.
Back discomfort and general reading 📖
Backache and pelvic discomfort are common topics in pregnancy, but this article does not offer treatment for them. If back pain is new, severe, or worrying, raise it with your maternity team.
For general background only — not as pregnancy programmes, and not to be followed in pregnancy without clinician advice — readers sometimes look at the site’s general articles on yoga poses for women and back pain exercises.
The site’s general article on home remedies for sciatic nerve pain is likewise general reading only. Nothing in those articles should be treated as safe for pregnancy without your own clinician’s advice.
Questions worth asking your maternity team 💬
It can help to take a short list of questions to an appointment, rather than trying to work out suitability from general articles alone.
Questions readers commonly find useful include whether any activity should be avoided in their particular pregnancy, what warning signs should prompt a call, and who to contact out of hours.
Asking those questions early in pregnancy is sensible even if you feel well. Early advice is easier to follow than advice sought after a worrying symptom.
Frequently asked questions ❓
Can this article tell me which exercise is right for me in the first trimester?
No. This article is general information only and deliberately gives no recommendations, routines, or instructions.
Only your own clinician or midwife, who knows your pregnancy and medical history, can advise what — if anything — is appropriate for you. If you are unsure, ask them before starting or continuing any activity.
This article is general information only and is not a substitute for medical advice. If you have any concern about your pregnancy, contact your clinician, midwife, or maternity unit.