I went in yesterday for blood work and an ultrasound. The sac was sort of empty but the doctor said there's something there but it's definitely too early to really see anything. She offered to do my hCG levels and see if they go up 48 hours later. She also said her best guess is that I'm 4-5 weeks pregnant. My first hCG level was 9,282. Anyone else have a high number and saw it double? I'm kind of freaking out that the sac was empty so I'm looking for every reason that this little one is growing properly! I've had a missed MC, so naturally I'm a worrier.