Menstrual Changes After Stopping Birth Control Pills

Discontinuation of medication two months prior, with delayed menstruation in the second month?

Hello, I have been taking the contraceptive pill, Yaz, since June of last year, and I stopped taking it two months ago.
My period was expected on June 27, but it was delayed for two days and arrived on June 29.
My ovulation period was from July 11 to July 14, during which I had unprotected intercourse every day.
Now, my period for July was expected on July 29, but it has been delayed.
Is it possible that I could be pregnant? Does stopping the pill cause irregular periods? If I decide to start taking the contraceptive pill again, should I take it on the first day of my period? Thank you!

Niming, 20~29 year old female. Ask Date: 2019/07/30

Dr. Cao Guotao reply Obstetrics and Gynecology

Hello, it is normal for your period to come two days late after stopping the medication, arriving on 6/29.
The ovulation period is from 7/11 to 7/14, and since you had unprotected intercourse every day during that time, you can check for pregnancy to find out.
It is always best to use contraception throughout, as you cannot rely on the safe period.
Start taking the contraceptive pill on the fifth day of your menstrual cycle.
Wishing you good health.

Reply Date: 2019/07/30

More Info

When a woman stops taking birth control pills, it is common to experience changes in her menstrual cycle. The hormonal fluctuations caused by the cessation of the pill can lead to irregularities in the timing and flow of menstruation. In your case, you mentioned that your period was delayed by two days after stopping the pill, which is not unusual. It can take some time for your body to readjust to its natural hormonal rhythm after discontinuing hormonal contraceptives.

Regarding your current situation, where your expected period on July 29 has not yet arrived, there is a possibility of pregnancy, especially since you mentioned having unprotected intercourse during your ovulation period (July 11-14). The timing of your sexual activity aligns with the fertile window, which typically occurs around ovulation. If you have missed your period, it would be advisable to take a home pregnancy test to determine if you are pregnant. These tests are generally reliable and can provide results as early as the first day of your missed period.

It is also important to note that after stopping birth control pills, some women may experience a condition known as post-pill amenorrhea, where their periods may be absent for a few cycles. This is usually temporary, and most women will eventually resume their normal menstrual cycles. However, if you find that your periods remain irregular or absent for an extended period, it would be wise to consult with a healthcare provider to rule out any underlying issues.

If you decide to resume taking birth control pills, the general recommendation is to start the new pack on the first day of your next menstrual period. This approach helps ensure that you are adequately protected against pregnancy from the beginning of the cycle. If you start the pill at a different time, such as in the middle of your cycle, you may need to use additional contraceptive methods, like condoms, for the first seven days to ensure effective protection.

In summary, after stopping birth control pills, it is normal to experience changes in your menstrual cycle, including delays or irregularities. If you suspect you might be pregnant, taking a pregnancy test is the best course of action. Should you choose to restart the pill, starting on the first day of your period is recommended for optimal effectiveness. If you have any concerns about your menstrual health or contraceptive options, don't hesitate to reach out to your healthcare provider for personalized advice and support.

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