I'm so scared.

Serena • i'm serena . i'm 17 and i live in georgia
Okay, first off, I'm 17. I've also been having symptoms of pregnancy. I've been having to pee constantly, craving certain foods, sleeping WAY more than usual, and getting random bouts of nausea. I have 3 days until my period is due ( my last period was much shorter and lighter than normal) and I'm not sure if it's too early to take a test. And if it's positive, what do I do? My parents would be so disappointed, as would my boyfriends parents.