He must not be the one!!

Every 30 days I'm stuck with AF...negative... He has 3kids by 2women..I have only one from a previous relationship. We been married since 2008, dating since 2006, he has bbymama drama. But its due to jealous of our marriage. Well 7 years into our marriage too decided to try for our own. And no luck. We see the kids by spells. ( when the mother's "decides" to let him).....Smh anyway my deeply believing it hasn't happened because of all this ..but why send me a husband that I can't have a baby with. I had one why not another. Also one mother is extremely unfit. I could write a book!