I need some insight

So I had unprotected sex two weeks ago on Friday and my boyfriend came in me and I started my period the same day. So I've been waiting to test. Lately I've been nauseous and throwing up and super tired. There's no stress in my life and i haven't been thinking about it until now. We've had sex since then and have been using condoms.
Anything would be helpful right now. 
I am an adult and on my own also.