I've never been interested in getting married or having kids, and it's never been an issue (or even a subject of discussion) among family.
Older coworkers and close female friends are the only people who ever bring it up.
It's smart to want to deal with your mental issues before getting into a serious relationship or having kids, though, IMO. Your future kids, if you want them, deserve the best parent you can be. Both my parents had mental issues, and I honestly wish they hadn't had kids.