Ok, so I am 14 days late on my period. I was on the depo shot but it ran out in Aug. My periods were irregular due to the shot. I figured it was going back to normal because for the last 2 months is was on the 1st. This month I thought I was going to get it because my boobs were sore and I was crampy. I had white and light green maybe yellow discharge. It never did come and boobs went back to normal. Then later my boobs got sore again and a few days ago I had some pink brown discharge, not a lot though and still cramping and been very moody. I have taken 5 pregnancy tests and they have all came back negative. A clinic also gave me a urine test and it was negative. I am worried something is wrong with me. Can I be pregnant? Please Help!!!!