It can be hard! My disease started shortly after I had our son. Like by a few months. So I had no idea what was going on with me. I was always so tired, in the bathroom with D all the time. I managed though. Now if I had to work on top of it, I don't think I could have done that. lol I did work for a few years, but that was when my son was already in school. And even then I got too sick to work only 3 years in. Thankfully my husband is always a very good Daddy. He helped out a lot with late nights, diaper changes, and giving Mommy nap times.
We only had the one child. None of my doctors told me they'd touch me if ever got pregnant. That I'd need a good high risk doctor. Not only do I have Crohn's, but high blood pressure, and Polycystic Ovarian Syndrome. So I'm a mess. We consider our son to be our miracle baby.
You have to do what is best for you. I'd talk with your doctors. Talk with your soon to be husband, and I'm sure you'll make the right choice for you both. Even though it was hard (my son's 13 now), I don't regret it in the least. He's one of the best things I ever did in my life.
Diagnosed with Crohn's Disease 2/06, and Health Anxiety/OCD 12/08 Taking Asacol, Questran, Toprol XL, and Celexa.