you should check with your doctor if you are pregnant and want to try pilates. there are currently no studies to prove the safety or efficacy of pilates during pregnancy. this is not to say that it is unsafe but you should check with your doctor first. there is evidence that aerobic exercise during pregnancy at a level great enough to produce a training effect does not adversely affect birth weight or other maternal and infant outcomes and that it may be associated with fewer pregnancy-associated discomforts but there is limited research on weight lifting and pregnancy. the american college of obstetricians and gynecologists in their position statement on pregnancy and exercise recommend limiting repetitive isometric or heavy resistance weight lifting and any exercises that result in a large rise in blood pressure. pilates can be both isometric and high intensity so the instructor should account for that when teaching you pilates if you are pregnant. again check with your doctor if you are pregnant and want to try pilates.
can i do pilates if i'm pregnant?