I've had my period for a MONTH

So, I finally made an appointment for the OBGYN. I thought I'd be answering a few questions & then maybe an ultrasound to see if he could see anything (e.g. Fibroids) instead, he thought it'd be a great time to do my annual 🙄 First thing he says when he gets down there, yup, I can see that you're on your period... REALLY?! He prescribed me birth control to try and regulate my period. I was totally unprepared for the exam...gross.