Not knowing what to do...

Hazel
Okay so.. I was in a relationship with this guy for 4 years but we broke up months ago.. We still talk and I still love him, (we talk but not to be together) cause hes "busy" with work now.. I totally respect his decisions cause I like giving him space.. But to the point he once told me that he wanted  baby with me but I told him that i dd to but not at the moment. And last time we talked he told me he wanted to have a baby with me so I could always be on his life with his child .. And today he wants to have sex and idk what to do cause i'm pretty sure hes gonna try to get me pregnant. Helpp! What should i do? ?