Chance of pregnancy????

So i took my nuva ring out 3/24 and had my period but i never put a new one in bc i got my refills screwed up. So my period ended about 3/31. Maybe a week later me and my long term bf had unprotected sex and again like 6 or 7 times after that. He pulled out every time although i though he didnt pull out in time once. Idk what to do cause it was too late to take plan b and since i ended birth control idk when id supposed to get my period next. Im just confused on what my chances are of being pregnant and what i should do. Just looking for advice. No judgement please.