A member asked:

Fet 2/26/16, 2 5day blast. my first beta on 3/7/16 was 109 and today 3/9/16 it was only 169. any ideas as to why its increasing but not doubling?

A doctor has provided 1 answer
Dr. Jeff Livingston answered

Specializes in Obstetrics and Gynecology

66%: We look for a 66% increase every 48 hours in early pregnancy. The internet simplifies that to the concept of “doubling” but that is not exactly right. Not everyone will follow that rule exactly. Some will increase at higher rates. Your next steps are the continue to track the rise in BHCG.

Answered 3/12/2016

1.5k views

Thank

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