Pregnancy is highly unlikely in your situation, but the pill is not 100% effective even if it is used perfectly. You are correct – increased stress levels and changes in routine may affect the regularity of menstrual cycles. Late or missed periods can also be caused by hormonal imbalances, perimenopause, illness or infection, use of certain medications, and excessive dieting or exercise.
If you don’t have any bleeding at all by the time you’re ready to open your next pack of pills, go ahead and take a pregnancy test. Do not stop taking your birth control pills unless you test positive for pregnancy. If you miss a second period, contact the provider who prescribed your pill for an appointment.
15. March 2012
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