2 doctors weighed in:
I am on implanon birth control and I haven't had a period for 4 months. Could I be pregnant? I took a test & it was neg but where is my period?
2 doctors weighed in

Dr. Vasu Brown
Wound care
1 doctor agrees
In brief: Progesterone effect
Implanon and other Progesterone birthcontrol products can cause interruption to periods - keeps your ovary dormant.

In brief: Progesterone effect
Implanon and other Progesterone birthcontrol products can cause interruption to periods - keeps your ovary dormant.
Dr. Vasu Brown
Dr. Vasu Brown
Thank
Get help from a real doctor now
Dr. Jane Van Dis
Board Certified, Obstetrics & Gynecology
14 years in practice
47M people helped
Continue
107,000 doctors available
Read more answers from doctors