my last period was nov 29th. i went to pee @ 1a.m dec 27th i wiped therewas a lil blood on the tp i decided to put a tampon in and when i woke up at 9 a.m i went and took it out it had a little brown blood on the tip of it now the blood i had when i wiped previously at 1 was kinda lite red. i havent bled since then. do u think its implantation bleeding? whats my chance of being pregnant? and when should i take a pt?