my period, or so it seems, doesnt seem normal to me. what else could it be i am 19 goin on 20 in may and im 5 9. I have been on depo for about two years, and my last needle was a month ago in the begining of April but i told my doctor i would like to stop so i didnt get it done. i have had sex about a week or so after that date and a few more times. I got my period, or i think it is my period, after i had sex bout a week ago and then again two days ago. The bleeding was bright red at first and my tampons seemed to get filled to fast. then i put a pad on and i didnt bleed as much. I dont know what spotting is really like or whether i could be the implantation bleeding. It seems that the red is stayin but has a slight difference in color more dark but not to dark. I dont know if i can be pregant or if that is even possible due to i just stopped my needle not to long ago. it could be just my period but it seems to be messing wit my mind. what could it be.