Hello, Is there a Crohn's info and support network? - they may be able to recommend a Dr or obstetrician with a special interest in this area which I'm sure would help you enormously! Also there may be some (international) online forums where you might be able to get some more info too. Try googling Crohns support and see where that gets you. Remember to go to your visits armed with a list of questions that need answered.
HTH
:-)