I don’t know what to do

This isn’t a pregnancy post or anything related to it but it may effect it later on years from now. I’m 24 and have been happily married for one year now this last September. I’m starting to have conflicting thoughts concerning my schooling and I’m not sure how to talk to my husband about it. I promised him I’d finish since this program is over $42,000, but I’m starting to doubt it. We made a deal that we won’t have kids until I graduate and get the weight loss and surgery I need before then too (surgery is for a hiatal hernia that I need to lose the weight for). But I’m having issues now and I’m falling way behind and originally I was going to graduate next October but now it won’t be until the following year. I recently discovered that there is a history of ovarian issues on my mother’s side and very early onset menopause as well so I’m worried that if I wait too long I may not have kids of my own. So I’m starting to think about switching my schooling again but I don’t know how to talk to my husband about it and deal with that debt too since he’s currently out only income and we’re trying to save for a house too. Any advice? Please be nice.