Yes i have been having something like contraction for two days. With back pian and belly pian iv took two test and its says negative for pragnace and went to the doctor also negative but just now i had a discarge of something kind of hard and like yellow with a little blood what can this be when the pain in my bell and back starts i get hot in my face and they last about 2 min and 5 min a part it fets worse when i walk ???