I am the only person in my family that has IBD, as far as I know. My mom does deal with intestinal issues, she's always taking fiber and complaining about
her gut and my dad has diverticulitis. My mom also has issues with eczyma. I don't really know what kind of health issues they have, kind of don't ask, don't tell. They don't know I have IBD.
I don't think you should let IBD stop you from having children. I, personally, don't know if I will have children, partly because I am scared to pass on the IBD but mostly because I don't feel like my health is up to that kind of challenge. Maybe if I figure out a solution to my fatigue, I could consider children but right now, I don't see myself having the energy to devote to children.