help!

Suzana Guadalupe • Suzie ❤️
So last month my period was late I took multiple home test and they were negative not satisfied I went to my doctor twice. Both times the test came back negative. This month my period is a no show. I'm officially 34 day late. I'm having hecer bad cramps now they hurt to stand up at some points. My boyfriend thinks I might be pregnant and he is more than supportive. I've had issues being irregular before but I wasn't sexually active. Now I'm scared and in pain. What should I do.