hi i'm 18 i was on depo for all of my teenage years i finally got off about 2 months ago, on the 11th of dec. i noticed a brown reddish discharge in my panties it continued for a few hours and then turned into a red period color blood so i figured everything was ok well that was until it only lasted for 1 1/2 day and then it disappeared a had a little spotting for a few hours the next day but it was completely gone by 3pm that afternoon..i haven't seen anything at all lately and im kinda worried i have read different things if there is anyone else out there who went through this and have an answer for this can you please help me. is this implantation bleeding?? could i be pregnant??