So I started my period Monday. Today is only wednesday. I usually last anywhere between 6-8 days. I'm irregular as well. So I was going to the bathroom yesterday and bleeding a lot (tmi) sorry. Anyways today I started off a bit heavy then all of a sudden it's just nearly stopped and all the old dry blood is coming out. Is it normal for this to occasionally happen? The other part that isn't normal is it looked like I was in my ovulation window when I would take a tampon out. Could it be possible that I'm fertile while on my period?