You can continue to do your normal physical activities and exercises as you have prior to your pregnancy. Exercise should be moderated if you get short of breath or “get winded.” You should slow down if you cannot talk while working out. Pulse rates should not exceed 140 beats per minute.
We do not recommend bouncy activities such as jumping jacks, horseback riding, skiing or intense running because such up and down jerky motions can potentially disrupt the attachment of the placenta. Biking, swimming, elliptical, walking on a treadmill, step climber and working out with weights are permissible.
Note: Sex is fine during pregnancy: it can be challenging in certain positions late in pregnancy. Yes, I know you are too tired to even think about it!