Asacol causing stomach pains? Or baby?

I wrote an earlier post about how my wife is 9 months pregnant and was just diagnosed with UC this past Monday. She can't take the prednisone because it causes her to become so sick. She is taking 6 pills of Asacol today, and is going to try to stick with that and see what happens. She was forced to go on disability on Tuesday because she was spending so much time in the bathroom at school. My question is that she is wondering if someone can tell us if the Asacol is causing the stomach pains she's having? This is our 1st child so she has know way of knowing if the pain is caused by the baby or the meds?? Wondering if anyone had any comments from similiar experience?

Asacol has never caused me any pain. 

If she she has inflammation in her colon which is what UC is then that will cause pain.  UC is ulcers throughout all or part of the colon.  I just imagine if my mouth was full of ulcers it would be pretty sore and the same goes for your colon it gives you stomach pain. 

Inflammation causes the colon to go into spasm which causes the stomach cramps.  When I am flaring this happens intermittantly thoughout the day but I am also left with a dull ache pretty much all day.  Hot baths or hot water bottles definately help this.  I am sure that once the inflammation is under control the stomach pain will go.  But if you are worried that she is having a reaction to the Asacol you should speak to your doctor about it.