really worried i suffer with crohns and want to get pregnant

I suffer with crohns colitis and really want to start a family with my boyfriend I've had surgery 5 years ago I used to have a bag but got it reversed which has left me going to the toilet quite a lot, can I get pregnant just I've read things saying if you suffer with crohns or colitis you can be infertile please help has anyone else with crohns colitis managed to get pregnant and have a healthy child and how long did it take really worried x