Am I pregnant?

I’m 15 and have been having sex a lot recently but my parents don’t know because they’re strict. I have always used a condom every time we do it and before he cums he always pulls out just Incase there is a problem w the condom. I convinced my parents to get me birth control but I said it was for my periods. I haven’t taken any yet just because it says to being once your period starts. Recently, I’ve been experiencing cramps and nausea and have white discharge. My is supposed to start again tomorrow but I’m not nauseous when I’m on my period, and I don’t usually notice white discharge before my period. I’m having a pregnancy scare and don’t know what to do.

UP-FUCKING-DATE: I just started my period and holy fuck I started crying so hard when realized I’m not pregnant. I’m going to start my birth control Sunday!