PLEASE I NEED HELP!!!

I recently had unprotected sex and I'm NOT on birth control usually me and my husband usually use condoms we are newlyweds and are not ready to have kids yet! Well the next morning I took the morning after pill and immediately started bleeding. I was expecting my period to come any day when I had sex. Now I have been non stop bleeding for 8 days and it keeps getting heavier and heavier. I don't normally have a long or heavy period however my period isn't usually that normal on when it comes sometimes it's the end of a month sometimes the middle sometimes the end it's always changing. Now I'm freaking out because the blood keeps getting heavier and darker and now I have been getting bad headaches and feeling dizziness. I don't know what to do. I don't have a OBGYN and have never been to one I'm 22 years old. Please help I don't know what to do should I call my normal dr? Or should I try and find a OBGYN or will I be okay?

***UPDATE****

Went to walk in clinic today and was told not to worry unless bleeding last more then 2 weeks. All my symptoms are normal from plan b pill.