My OB and GI both said no to Remicade while pregnant. I would never want to get take it while pregnant. Remicade is part mouse proteins and it just hasn't been around long enough for anyone to know what effects it will have down the road, especially on a baby. Just because a baby comes out appearing healthy doesn't mean it may not face health problems. There are other drugs we can take - yes, I'm including the dreaded prednisone - so we don't have to take those kind of chances.
I've heard that too that pregnancy can put women into remission, however, it's the opposite for some women, such as myself. My last two pregnancies were my two major flares since diagnosed with UC. The second time around I started having blood and d and I just knew I was pregnant. Who needs a pregnancy test? Good luck.