My period is late

Quanisha

My period is a week and 2 days late I took 2 tests they were both negative. Last month I had my period twice both lasted 6-7 days and they were o my 5 days apart. When my 1st period stopped 5 days later I bled again. Went to urgent care about the bleeding I had the 2nd time and they did an ultrasound and said I have a scar on my uterus but that was it. Seen my Gyn 2 days later and she didn’t help all they do is a urine pregnancy test and it keeps coming back negative they took blood but she said everything is fine. My thyroid no pcos so idk what’s going on