Rant !!!!

I feel so jealous right now. Backstory my bf has only dated one girl before me. Since we started dating he has always expressed how much he wants a baby with me. We are now going on 10 months ttc and his ex just had a baby and even tho its not his I feel jealous like maybe he.couldve had a baby with her and its my fault we havent concieved. And it doesnt help that every month he gets so excited just to.be let down.