I had a baby in June, normal pregnancy, healthy baby. I had normal periods in august, September, October and November. I haven't had a period in 5 months now, I have taken 10 pregnancy tests and they have all been negative. I went to my obgyn last week and she did a pap exam, tomorrow I have to go for blood work. well I have been having very bad lower back pain for about 5 days and last night the pain was so bad I woke up from my sleep. I took advil and went to use the restroom before trying to go back to sleep, well instead I felt a lump come out of me, it was like a grape sized blood clot. I was kinda shocked but put on a panty liner and went back to sleep. well now all day I have been wiping dark brown blood after every time I pee and there have been quite a few tiny clumps of red blood on there too?