Swimming is one of the best forms of exercise that you can do at any time of your life, including while you're pregnant.

The water supports up to 90% of your body weight so it can offer relief from your increasing weight. You don't have to do endless lengths; just being in the water can be great for your overall well-being. Some women find it eases swelling in their legs and feet and relieves sciatic pain.

You might not like the idea of getting into a costume as your bump grows but you shouldn't let it put you off because swimming can be so beneficial. And many swimming pools offer aquanatal classes where you'll exercise only with other expectant mothers.

You may wish to check with their doctor or midwife before going swimming, particularly if it is a new activity for you. For most women, swimming during pregnancy is safe but if you have a history of miscarriage or difficulties during pregnancy, or suffer from heart or lung disease, it is best to avoid swimming while you're pregnant.