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A 19-year-old female asked:

Can switching birth control cause you to skip a period? i changed from a high hormone birth control to a very low hormone birth control. i have switched from cryselle to lo loestrin fe. i am usually very regular in my period and missed my period my first

1 doctor answer2 doctors weighed in
Dr. Charles Gordon
Specializes in Adolescent Medicine
Could: When you switch pills you have to be very meticulous. If you are not careful during the cross-over you might become pregnant.
Dr. Nicholas Fogelson
Specializes in Gynecology
It may be that you extended the time you were on the active pills by switching. If you switched after a complete pack of the old pills you should have had a menstrual bleed. If you were halfway through the pack and then just started the new pack then it is totally normal that you missed it, and you woudl expect to bleed at the end of the second pack you started.
Oct 5, 2015
Last updated Oct 5, 2015

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