I am in the same boat that you're in. My LMP was 7/14 and here are my hcg levels.
Aug 14 = 445.3
Aug 16 = 858.8
Aug 18 = 1959.6
Aug 20 = 4013.8
Aug 22 = 5067
Aug 24 = 8958.6
I also had a progesterone test on Aug 23 and it was 10.4 so I demanded to be put on progesterone supplements. I also had an ultrasound done on Aug 23 and I was measuring 5W2D which is correct because my cycles last between 31-32 days. At the ultrasound we saw a gestational sac and a yolk sac. The technician was positive and told me that she saw everything that she is supposed to see at this point in the pregnancy. My DH and I were thrilled until we got the hcg levels.
My doctor is concerned about my hcg levels from Aug 22 and has scheduled me for another ultrasound on Aug 28th. So I'm praying that I'll see some growth but it will only be 5 days since my last ultrasound and I'm not going to get too upset if they don't see a
because some don't see one until week 7 of pregnancy. So for me it is a wait and see game.
I'll be thinking of you and I'm wishing you the best of luck. Stay positive and try not to get too upset right now. I know this is tough to do (remember I'm going through this too) but worrying and stressing out about the unknown is only going to do harm to you and the baby. My mom told me you cannot worry about what you cannot control and I believe that this is out of my hands and if it is meant to be than it will be.
Best of luck,