It’s part of a man’s biology to want it. I think you should have said no, let’s wait a while and see how it goes but with being a rebound it’s best if you don’t do that.
Just be careful to not push men away too much otherwise you will be 40 with no husband or kids and look back to wonder what went wrong. There’s value in choice that’s for sure, but there’s also importance in finding places to compromise on.