Hi,

I begun my period on the 9th of December 2013 and I had sex on my 4th day while I was still bleeding. I do not have sex very often, and we used a condom effectively. I finished my period normally, then a few days after finishing while masturbating I begun to bleed. This isn't unusual for me, as it is suspected I have endometriosis (very painful periods, almost debilitating pain, pain during masturbation and bleeding for a few days afterwards, fatigue). It's has been suspected i've had this for the past year even prior to me being sexually active, I am 17, however i've had no invasive procedures done to confirm it as I am still young. I am on no contraceptive pills either despite the doctor suggesting birth control to treat to endometriosis. I disregarded this bleeding and thought it would go away after a couple of days as it usually does, however it lasted for about a week, with standard period cramps sometimes however not as severe as my usual ones. The bleeding began as very dark and mucky and then progressively became heavier and more red. It ended as my normal period would. Now it is the 14th of January and my period still has not come, however I am receiving the usual signs that it will come (starting at the same time my second bleeding of December did). I don't have any other unusual symptoms. Just as a side not, my period has a history of being late; my cycle used to be 6 weeks, and then reduced to about 5, however it is still not so consistent with timing. I also often experience ovulatory spotting and this repetition of bleeding also occured once about 3 years ago. I also had been suffering from chronic BV during this period, however I was recently prescribed flagyl and the infection went away. I am just concerned as to why this happened, so any insight would be helpful.