Weird cramping?

I sometimes get like a light cramping or discomfort recently? I've had my period for this month (it started Feb 8th and lasted 5 days) it was light. I've only had sex twice before with my bf and it was a week or two before my period. I'm on birth control, he used a condom both times and he pulls out everytime. I'm just worried honestly, even though we have safe sex. We're 16 & very cautious, don't want any kids rn. Am I just worrying to much? I just need some advice..