Bleeding during early pregnancy

I just got my BFP, but the way I've been busting out of my jeans recently, I think I may have been pregnant for a little while already, even though last month I had a BFNDid anyone have a "fake period" for a while before realizing they were pregnant? I mean you thought you were having your period for a few months, but you were pregnant and you didn't know it? I'd love to hear your stories!!