Birth control impact on HPT?

QUESTION

Can birth control affect the outcome of a pregnancy test. I have been taking my birth control off and on but feel that I may be pregnant. I've taken a few urine tests but they all come back negative. I've not really had a period since January/ February.

ANSWER

Birth control cannot affect the outcome of a pregnancy test. If it is negative, you are not pregnant unless it is too early to register, but even then, the test would be positive in four more weeks at the very latest.

It sounds like you are not consistent in taking your pills? If that is the case, this is definitely not the method for you. Those on birth control should not miss more than 1-2 pills per year for this method to work properly and not mess up your bleeding pattern. If you were having regular periods before you went on the pill but now you are not, it is probably because your body got confused with your "off and on" pattern. I would suggest that you explain all this to your midwife or other provider and request a different method if possible.

~Cynthia

Cynthia Flynn

Cynthia Flynn, CNM. PhD, is the General Director of the Family Health and Birth Center which provides prenatal, birth, postnatal, gynecological and primary health care to underserved women and their families in Washington, D.C. Recently Cynthia served as Associate Professor of Nursing at Seattle University. There she not only taught, but remained in full scope clinical midwifery practice at Valley Medical Center where she cared for pregnant and birthing women, and practices well-woman gynecology, family planning, and treatment of sexually transmitted diseases.

Cynthia founded Columbia Women's Clinic and Birth Center, where she took care of pregnant women and infants up to two weeks of age and attended both birth center and hospital births. Before Cynthia earned her CNM, she worked as a registered nurse in labor and delivery and postpartum and is a certified Doula and Doula trainer.