Hi, well yest afternoon, I passed some dark brown tissue, it was quite grose. so my GP sent me to have another they were about 8100 appr on sat, so 3days later 14800. so its not a 48 hr rise, possibly could be an impending miscarriage. I have no idea? could I still be miscarrying, I passed some more dark brown tissue yest. have had no more red blood or clotting & still all be ok,,. I am off to see my GP tomorrow, and they may organize a scan..