Hey I started my period on the 2nd at 1 or 2 in the morning & on the 5th I started showing brown stuff as if I was getting off then I spotted dark red then went brown again & today its really light as if its nothing there. I've been taking prenatal vitamins for about 2 months now. I was told I wasn't able to have kids so this is very abnormal for me.. could I be pregnant?

Sounds like a regular period to me, they can go back & forth like that. Usually you will not have any kind of period if pregnant. But best wishes! Doctors aren't always right.