Thread: Betas...terrible betas

Hi all I just found out I am pregnant with my third!! My LMP was on August 25, but I think it is possible that I concieved late in my cycle. According to my LMP I shoud be 6 weeks today. I had an u/s last week because of some mild cramping and they saw no sac. They said they think I am too early, which I feel could be right, but still you never know. So they did some betas (oh how I hate them) Here are the results:

On 9/30 - 76
On 10/1 - 108
On 10/3 - 283

I know it's good that they are doubling but by my calculations they still seem low with compared with my two other healthy pregnancies, and why couldn't they see a sac yet?? I remember getting u/s at 5 -6 weeks with them and seeing a sac. I am so confused I have to wait until Friday for another u/s. My doc didn't seem concerned at all, but doctors have a funny way of never seeming concerned when you are. My LMP was 8/25 and I know I concieved later in my cycle between 9/12 - 9/19. Does anyone have any input??? I would appreciate any.

By the way I have had 2 m/c and one chemical pregnancy in the past, before having two healthy pregnancies.