Late period


Hey ladies!

My period is 3 days late now and I took 4 tests they’re all negative. I went to the doctor she said I have to wait. She also did a pregnancy test which turned out negative. I have never actually had sex, but my boyfriend and I fool around sometimes (which is the reason why I was stressed lately because I don’t want to get pregnant). My anxiety is all over the place. Is this normal for periods to be late? I also had an ovarian cyst two cycles ago. Help me please.