Period or pregnancy? (PLEASE LEAVE THOUGHTS)

I already posted this on period talk but I just want to post it somewhere else too maybe to get more thoughts about the situation!

My boo & I had sex the other day, maybe about 3 days ago, without a condom. And I can't tell if I'm pregnant or if my period is just close. (My period should be in about 1 week) here's what I been feeling...

1. Really really emotional, over things I'm usually not.

2. Nauseated

3. Very small cramps

4. Headaches

5. Just plain sick. Like 24/7, kinda lazy too.