2 weeks go I had finished my moontime. It was a 5 day stint of heavy flow instead of the usual 7 days of medium-light flow. Now I am bleeding again, this time at the normal flow. Last time this happened I was 16, I'm 30 this year. I take no birth control as I find it males everything worse. Last night however, prior to the bleeding, I had intercourse, and this has never happened before. Can anyone help?