Family Planning Plus

If you were on the pill for two full weeks and did not miss any pills when you had sex with your boyfriend, then it was not necessary to take the morning after pill. You were protected by the regular birth control pill from pregnancy even though he ejaculated inside.  The pill begins to suppress ovulation (stop an egg from being released from the ovary) after you take one full week of birth control pills.  You probably missed your period because you took extra hormones (the morning after pill) on top of the hormones you were already getting from the regular birth control pill.  This most likely overloaded your system with hormones which prevented your endometrium (the lining of your womb) from filling up with blood, and so therefore, there was no blood to be released.

 Also, during the first three months of pill use, menstrual irregularities (including a missed period and bleeding in between periods) are a common side effect. Your body has to get used to the new hormone levels. After about three months of pill use, your body becomes accustomed to the new levels and the side effects usually go away.

Pregnancy is always a possibility because methods can fail, however, it is extremely unlikely in your case. Keep taking your birth control pills.  If you don’t have any bleeding by the end of the inactive (placebo or sugar) pills in your second pack of birth control, take a pregnancy test.