hi there...
a girlfriend of mine has crohns disease, and with her first pregnancy, i think she found the pregnancy really helped things, and she felt alot healthier and didnt have any flair ups... she couldn't breast feed because of medication from memory... with her second pregnancy i think she was really sick, but i am not sure if this was to do with crohns or not - sorry i am probably not being much help. after her second pregnancy she did have surgery to remove a section of her bowel/intestine.

sorry i probably haven't helped so much. good luck, i know its a really hard condition to deal with and it can be a struggle, i hope things start looking up for you and you have a healthy pregnancy.