So I had my period last month as expected, then this month 3 days late I have a brown discharge and a very little amount too, like it was only there when I whip myself. I have started prenatal vitamins 3 months ago taking them everyday also had sex 3 times in my fertile window this last time... I have been very tired lately and my boobs are kinda achy and nipples sore like this has been happening for about a week and half 2 weeks it's not real bad jus enough to notice I thought maybe it was my period coming but nothing other than the brown discharge... has this ever happened to anyone else?