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FamilyPhysician, Doctor
Category: OB GYN
Satisfied Customers: 12816
Experience:  Board certified Family Physician, 27 years experience in emergency medicine.
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Whats the chances of getting pregnant on Mirena? Has anyone

Customer Question

Whats the chances of getting pregnant on Mirena? Has anyone became pregnant while having mirena inserted?
Submitted: 9 years ago.
Category: OB GYN
Expert:  FamilyPhysician replied 9 years ago.
The Mirena is a very effective form of birth control, HOWEVER, pregnancy is indeed a possibility. From the official FDA approved prescribing information;
"The reported 12-month pregnancy rates were less than or equal to 0.2 per 100 women and the cumulative 5-year pregnancy rate was approximately 0.7 per 100 women"
So the answer is YES, a very few patients with Mirena will get pregnant. Less than 1 woman in 100 would be expected to get pregnat over a 5 year period on Mirena.