Oh sh** could I be pregnant?!

My husband and I have been dumb and haven't been using protection. I am 9 weeks pp, ebf, no period yet. I just woke up, it's 4 am here and I am having cramping. If I were pregnant I would be super happy except my due date would be less than a week after my sisters wedding which I need to travel out of state for. I am freaking out at the moment! Just venting, I know we are dumb for not using protection but I read that bf prevents pregnancy. Ohh my gosh. Going to go buy a test in a few hours.