I just saw a Dr. at Mt. Sinai last week. I have a fistula and I am on remicade and it does not seem to be healing. Well, it seems that my former Dr. should have put me on an antibiotic with the remicade because my seton drain and fistula are infected.
I have been trying to get pregnant for 6 months with no luck and the Dr. told me that I probably won't with an active infection in my body because babies don't like infection. So I guess if you have an infection in your body,you might not be able to get pregnant.
BTW, I will not be able to deliver naturally because I am a mess down there so it would be a scheduled c-section so I don't think your fissure would have an affect if you have a c-section. It just may get more sore as the baby grows.....
Wish you lots of luck