A member asked:

During pregnancy, what hormones/chemicals make your breasts increase in size?

A doctor has provided 1 answer
Dr. Jeff Livingston answered

Specializes in Obstetrics and Gynecology

Estrogen: There are a ton of hormonal changes associated with pregnancy. The main culprit of breast tenderness is Estrogen.

Answered 11/28/2017

1.3k views

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