Miscarriage

So over a week and half, I took 15 or so pregnancy tests, all showing positive, on different brands, within the time limit. Although most were faint and didnt seem to be getting darker like they should, and shoulve been darker than they were from going off the date of ovulation. Went to the doctor to confirm pregnancy, however the hcg/progesterone ratio was off... long behold 3 days after the bloodwork, i start having severe cramping, like contraction pain, and nausea that led to vomiting twice. The next morning, I wake to bleeding. Another miscarriage.