Multiple periods in one month.

Taylor

Hi I was told I have a know that I have a double uterus for the last year and a half. I have always had really pain full periods, it’s normal one once a month. But I think my birth control is causing me to have more then one a month. Last month I had two periods and I just started again this morning after having sex with my fiancé. Does any one have any idea on what could be causing it?