Cant control this jealousy

So I dated a pos for 5 years when we broke up and his new side trash was already preggo, they now have 2! The guy I dated after that got him current girl friend prego. A summer fling just invited me to their baby shower. A one night hook up just announced their second kid is on the way! And here I am been trying to have our first over a year and yet my ex's keeps dropping them like its candy! I feel like ever guy I have even remotely been involved with can have kids, and this jealousy is not fair to my husband(havnt had him tested but my cycles have been very messed up coming off bc)