I really dont know whats going on

[Raynae91]

Well my period started 1/11, it is normally heavy for the first 3 or 4 days and then gets lighter. towards the end of my period day 6-7 i see old blood. My period was supposed to end on 1/17 or 1/18 and there was old blood on those days but after that on 1/18-19 i kept bleeding only the blood looked like fresh blood and was lighter than my normal period. 2 weeks have passed and im still bleeding. I went to the hospital friday night 1/22. Had a pelvic ultrasound done, pelvic exam and urine test. Doctor says neg pregnancy test, didnt see anything abnormal on ultrasound and no sign of infection. I did have unprotected sex on Wednesday the 20th, my cycle for the past 3 or 4 years have been 23-25 days. Anywho i do have an appointment with a gyno tomorrow morning so hopefully they'll tell me whats going on. Im kind of freaking out and irritated about this and I Was just wondering if anyone has experienced anything like this before.