Pregnancy scare

So my boyfriend and I have been trying to do it but it hurts every time he put it in. On July 19 he put it in a little bit. Then I got my period around then. But we have been using protection. We did it aug 17. And I'm supposed to get my period shortly. I'm on the pill but it always takes my body a couple of days to get used to the white pill. But I haven't had a lot of cramps the past couple of days but I started taking the pack on day early because we were going to go to a water park and I hate tampons. Could I be pregnant??? I'm currently freaking out right now.