If you don't already take them I would highly recommend you start taking a probiotic. They are a crucial supplement for UC. I'm not a medical doctor but it seems Predisone would be a bad thing to be on when you are pregnant as it has horrible side effects which I'm sure you are aware by now. It sounds like you are also back on the 5ASA which is a good thing. Good luck in getting things under control. This forum is a wealth of information so keep asking questions...Just as an fyi it took me about
a year to fully get my first flare under control, so hopefully in time you'll find what works for you and get your quality of life back. Stay positive, things should improve for you!