Spotting??? What do you think?

Mar

Last night i was sure AF was coming i got a negative test, late afternoon at night as i wiped myself i saw light pink o the tp then i did it again and i saw a little tiny string like a mini mini cloth and i though AF was here already so i put on my pad and this morning nothing... This never happened before i have two kids and i never had implantation bleeding or spotting before AF i wonder if its normal AF was due yesterday