Went off of birth control mid April, but waited until June to start trying

Megan
Went off of birth control mid April, but waited until June to start trying. It worked! I took 4 tests before my next period and they were all negative. I was suppose to start on the 12th, but hadn't started and I didn't think much of it. Last night (14th) I just decided to take one more (the last one I had) and it was positive! I'll be going to the store today to get more!