Is this a sign of pregnancy plz plz help !?!?

Well i would wait. If you freak yourself out and think your prego then your body will react accordingly. Birth Control is meant to make your body think it's pregnant anyway so you could just be making yourself vomit and have back/ side pains. All you can do is wait. Trust me i used to be the same way, I would make myself sick and freak out thinking I was prego but I never was. All I can say is wait.