Hcg beta levels

Melissa

I am having a heck of a time. So full of anxiety and worry. I have a 4 year old son and have had two chemical pregnancies in the last 6 months. My Hcg levels are not doubling as one would hope. I am around 5 weeks 3 or 4 days?!? Does anyone have any success stories?

June 29th- 22 (day I found out I was pregnant)

July 3- 109

July 6-270

July 11- 623.

My doubling time is no where near 48-72 hours..