Hello, I had rougher sex with my boyfriend on Saturday and I saw a slight color change in my urine (very small amount of blood would have caused it), but I didn't think too much about it. We had sex again on Sunday, but it wasn't rough like Saturday. Then he was rough in fingering me after, but didn't do it for very long because I told him it hurt. Sunday night I began bleeding as much as I do when I start my period and its been over a day.
I had a yeast infection a couple of weeks ago and they checked for pollups and I recently switched my birth control to Loestrin. I know I don't have an STD because we were both virgins before each other. Do you know what could be causing this?