TTC but hubby don't let out

So we just had sex and it lasted longer which was nice but I was tired of riding, so we flipped him on top, but he couldn't cum so he just stop. It's only happened like one or 2x since we been together which is 11 yrs. not a big deal, but I fee so emotional lately because I want to get pregnant. Idk why when ever I'm ovulating we are extra tired and don't try in those days now I'm way passed ovulating and I fear I have to go another period. Maybe I'm just being dramatic but why didn't he ejaculate. I tried to help kissing on his neck and saying stuff but nothing worked. Boo hubby! Lol anyone else have this problem and how did you get your SO to go??