Ok ladies I am absolutely freaking out. I miscarried in June and found out I was pregnant again 11-28. So I called the dr and they had blood work done 11-29. My progesterone was at 24 and my hcg was @ 36 they wanted to repeat in one week so 12-7 they just did my hcg and my levels were @ 525. Which means they were doubling appropriately. The dr office said they were going to repeat every 48 hrs until levels reach 1800 or above so they can get me in for a ultrasound. So today I got some done and my levels are at 637 (I know because I work in the hospital lab) so they didn't double. I'm a mess!!!! I'm waiting for the office to call me but I'm so scared I'm going to lose this one too! Has anyone else experienced this???