Aunt flow

So I've been irregular since I was 16 so missing a period was nothing new. The doctor has confirmed that I don't have pcos or any issues. My period finally seemed like it was regulating until this month I am late again. My boyfriend and I are sexually active but are very precautious and have had no accidents, I am showing no symptoms of pregnacy others than being late, but I'm am cramping which is normal for me but no bleeding as of yet I'm starting to worry