Went for an ultrasound on Friday when I was supposed to be 6 weeks according to my LMP but the ultrasound showed 5w2d with only a sac. They took blood to check my levels and I was at 13500. Went back today for another blood draw and levels were 21000. At this point my dr doesn't think it's looking good since over the course of three days my numbers didn't double and because of the results of the previous ultrasound. I have another ultrasound tomorrow that I think will show im having a second miscarriage :-( feeling devastated!