Feeling hopeful

Ok so I've been going off this glow app on when I ovulate and get my af. So my af has always been wrong according to this app. It's come earlier than when the app says I should get it. I also thought I ovulated like most normal women around cycle day 14. I think I ovulate a couple days after my af here's why. I remember exactly when I conceived my daughter it was December 30 2008. According to my records I had said my last lmp was December 21 2008. That's nine days after my af. So maybe I've been getting the timing all wrong and there's nothing wrong with me or my bf. My af ended nov. 12 2016. We bd nov. 11 nov 12 and nov 13. I'm hoping during that time I conceived. I've read women have gotten pregnant a day after their af or 2 days after af. So here's to hoping it works out this month