This happened to me when I was younger, not to long after that I started my period. So just watch out. You might be about to have your first period. Have your mom buy you some pads or tampons. So you can be ready.
Good Luck :D

thats ur period. when ur on ur period ur uterus sheds its lining, so the brown & red stuff is basically blood with some extra stuff mixed in. was that ur question? the "old" blood is more brownish and the fresh, "new" blood is red, thats why it might start out brown & turn red later in ur period. oh and ur feeling no pain? ohh honey dont worry bout that! i kno when i first got mine i didnt get crazy cramps til...well, the second day. but everyones different, maybe ur jus the lucky one who doesnt have to deal with all that (yet). BE GLAD! and enjoy it while it lasts cuz pretty soon those cramps r gonna kick in, i can almost guarantee u! not being pessimistic its jus a fact of life! welcome to womanhood! (im 13 btw)

hope that answered ur question! <3

1 its blood
2 ur on the rag
3 at the end of the week ul stop

its probably your period. did you tell your mom? you should

sound like you got your peroid congrats

It Most Likely Is Your Period. You Should Ask Your Mother For Tips And Any Questions About It.
If It Doesn't Stop In A While It Could Be Something Else...