I first started my period 3 days ago. And every since then I've been having brown stuff come out. I know it's old blood. There is a little blood sometimes for about an hour or so. But I need to know how long will it last, cause I'm wearing a pantyliner and I'm going to school tomorrow and I need to know if I need to switch to a pad.

Why don't you just switch to a pad to be on the safe side?

We don't know how long this will last with you because every woman is different.

Ok thanks!