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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Periods In Spite Of Being On Birth Control?

I am 21, 5'5'', 130 lbs. I am on the birth control pill Tri-Sprintec, and I have been for about 3 years. I was supposed to start a new pack two Mondays ago and I forgot to pick up the pills so I started a new pack on Tuesday. Now, two weeks into my pack I have started my period. Why is this?
Fri, 14 Mar 2014
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What Causes Periods In Spite Of Being On Birth Control?