I have been seeing my obgyn for the past 2 weeks. I had a miscarriage last year so she wanted to monitor my hcg levels closely this time. On the 10th my hcg level was 79 but my progesterone level was only 8, my progesterone was a little low and she put me on prometrium. On the 12th my level had only rised to 84 it should have doubled so she wanted me to come in for bloodwork again the following week. on the 17th i went in for blood work again and my hcg level was 3. She told me that any level below 5 was considerd not to be pregnet, and that i had miscarried. I did not understand because i had no pain or bleeding, so how could i have miscarried? She told me that my body must have absorbed the pregnancy, Has anyone heard of this it sounds so sci-fi to me, and i dont understand how something like this can happen.