It is well documented that exercise in pregnancy has many benefits. It can help reduce rates of gestational diabetes, improve duration of labour, reduce weight gain in pregnancy, improve mood, improve sleep quality and help you adapt to your ever-changing body. A strong and active pregnancy will also help prepare you for life with a baby which inevitably involves lots of carrying, lifting and rocking, all of which can be tough on someone who has not just carried a baby for nine months and given birth.