Help might be pregnant.....

I've been peeing alot & feeling nauseated like waves of it, comes & goes! We had unprotected sex but I'm on the pill & I take it every day but last month we had sex in the 1st 3days of the new pack & now I'm worried! I mean I got a light period idk what to do... I mean I know test yes I know but I'm scared and need some insight please I dnt have any women i trust or close to that I can go to about this please help I beg you