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A 26-year-old female asked:

I have started lolostrin bcp on 12/28 to regulate my period and iron.i had sex the 4th day of my cycle. im 6 days late what is the cause?

2 doctor answers4 doctors weighed in
Dr. Ruth Crystal
Obstetrics and Gynecology 27 years experience
Depends: Did you have your period on 12/28? The birth control pills should be started within 6 days of the first day of your period. If you did not start on your period, you may have ovulated and should take a pregnancy test.
Dr. Kevin Daus
Dr. Kevin Daus commented
Obstetrics and Gynecology 37 years experience
Also a lot of the new low dose pills cause you to miss your period. Better to take a pregnancy test and put you fears to rest.
Feb 3, 2012
Dr. Gurmukh Singh
Pathology 49 years experience
Pregnancy test: Do a home pregnancy test. If the result is negative repeat the test 4-5 days later unless you get a period by then. Use first morning urine and follow the instructions for the test carefully.

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Last updated Dec 9, 2018

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