Aunt Flo scare!!!

So im 7 months post partum. I took birth control for two months after my 6 week check up. The hormones were making me so mean so I stopped and Ive felt sooo much better. Me and my husband maybe had sex 4 times this month but all protected because im very cautious now.  except one time we were drunk. he tried to do the pull out method and I told him heck no!! so he did like two pumps and I realised and made him put a condom on. Im almost 3 weeks late from when I should have had AF but my period app is telling me I should get it in two days. Idk if I missed a cycle tracking it. But is there anyway I could be pregnant im sooo nervous. Help me out ladies!!!! I need to calm my nervous so it AF comes. Fingers crossed!!!! Btw I dont breastfeed