Help me!!!!

jessica • 20

so about two days ago, my boyfriend and I were having sex and i noticed a little discomfort but nothing unbearable - but then after we got done, i notice it was sore feeling. later we tried having sex again & i had to stop, that’s how tender/sore it was. Last night we had sex, it wasn’t as tender but it hurt. it doesn’t burn to pee, it does hurt to sit however. what is happening?! SOS.