pregnancy or period?

It's 4 days before my period should come and lately I have noticed that it hurts when I suck in my stomach and sometimes I can feel it in my vagina. And when I push on my stomach it makes noises kinda like I'm hungry but idk if that's normal. My boobs have also been hurting but those are the only symptoms of pregnancy/period that I've had. I had sex 3 times this month but they were all protected and the last time was 2 weeks ago. The only time we didn't use a condom was abt 3 weeks ago and it was on the day of my fertile window but he only put it in once and then put a condom on. Can someone please tell me what is going on?