decided to give up

I've decided to quit trying to get pregnant and finally have my hysterectomy. I have 4 children with my ex husband but my current fiancé doesn't have any. I told him we could have one more but I don't think I can handle any more pain and disappointment. I'm pretty sure this will end my relationship bec we have discussed it in the past and he has told me, if I couldn't give him a child he would hire a serogate and find a way to have his own.