Sex as a teen

In 7th grade I had a boyfriend and we broke up in 9th grade. I am now a junior in highs cool and we've been great friends ever since. Recently we've been talking about having sex even though we aren't bf and gf. So 4 weeks ago I got off birth control and immedieltly got my period the next day. We had sex on day 3 of my period. I've read that you can get pregnant on your period but its unlikley but my case is different. So the past 4 weeks I've been having symptoms like ; fatigue ,sore boobs,lots of white discharge ,cramps,headaches,bloating. I'm now on day 2 of a missed period. Please help , I'm scared to get a test right now so do you think I'm preggo??? I'm almost 17 btw