Try to be active on most days of the week, if not every day, for at least 30 minutes a day.
Find out how active you should be in pregnancy on Tommy’s website.
The important thing is to make sure that the exercise or activity that you do is fairly easy-going, and doesn’t involve the potential for any jolts or falls.
If you want to start an exercise programme such as running, swimming, cycling, walking or aerobics, tell your instructor that you're pregnant.
Start with 15 minutes of continuous exercise, three times a week, and increase this gradually to at least four, 30-minute sessions a week.
Don’t exercise lying flat on your back after 16 weeks of pregnancy Besides being uncomfortable, this position may cause dizziness.
It puts your uterus on top of the vena cava, a major blood vessel, and this may reduce blood flow to your growing baby, and your brain. Inferior vena cava pressure in late pregnancy An International Journal of Obstetrics & Gynaecology 70(6):1044-1049 Schneider KTM, Bollinger A, Huch A, et al. The oscillating 'vena cava syndrome' during quiet standing - an unexpected observation in late pregnancy. Clinical Obstetrics and Gynecology 46(2):442-455 Wolfe LA, Weissgerber TL. Clinical Physiology of exercise in pregnancy: a literature review, Journal of Obstetrics & Gynaecology 25(6):473-83 Wright M.
So even if you’re usually quite supple, you will be more prone to sprains and other injuries, now you're pregnant.