Am I prego?

So I have a question I have PCOS my DR put me on birth control for 3 months along with metFORMIN this is the 3rd month without birth control all my periods seemed normal I'm late on this period yet I'm bloating BIG time i feel like an elephant with cramps I've been having a lot of headaches a couple weeks ago I threw up at work I did have sex during ovulation time (what glow predicts) I've never had a baby so I'm wondering if these could be prego symptoms?