Want another baby but fiancé doesn’t rn???

I have a five year old from a previous relationship. Me and my fiancé have been talking about babies a lot lately and he wants to have a baby but he’s also scared for the pregnancy part and he’s impatient about having to wait nine months for the baby because he wants it there and in the world right then.😭 He obviously doesn’t have kids of his own.😂

He keeps saying he wants to wait until we’re more financially stable and more prepared but I keep telling him that nobody is really ever FULLY stable enough or prepared enough for a baby. (And I’m sure most of you know what I mean by the way that I said that, of course you should be stable but nobody is really ever fully as 1000% ready as you feel you should be if that makes sense)

I just feel that now that my son is five I’d like to have more, I’ve always been one of those people that wanted my kids close in age but I had my son as a teenager so obviously for me that plan went out the window. I just don’t want to feel like I’m restarting when it comes to raising kids.. I’ve explained that to him and I understand his reasoning for wanting to wait but it really just bums me out sometimes.

Like sometimes it scares me to see how he’ll react if I do end up unintentionally getting pregnant.