Why am I lightly bleeding for 12 days straight only when I whip and its not enough for a pad?

?? 12 days straight and its really light like that either you have iregular period you can go to your women's doc and they with give you some form of birth control and get that fixed, but if that's not what's wrong then you just may be pregnant...

Either way around u should go to your women's doc and talk to them about it so you can find out..