I need HELP!

Ok I'll try to keep this short. I was with my daughters father for 7 years, we broke up recently, and in true male fashion he's dating somebody else already. 
It's hard to get over someone overnight and we still have unprotected sex on a daily basis and he rarely pulls out.
I am so ready for another child but I feel like I'm setting myself up for disappointment. 
I need help! How can I move on? I don't know how serious he is with this girl and I don't want to end up pregnant and in drama.