I am a yoga/pilates instructor and have been practicing for years.. I am 20 weeks and my doctor said all is fine and unless I feel uncomfortable then to stop certain things.. I have read online specific poses not to do.. But last night I read something about easing up on the core work because you can get something called diastastis, where the large abdomen muscles separate.. Scared the shit out of me! But then I've read other articles saying that keeping up core work is great through out pregnancy.. Any feedback? Thanks!