Delayed Menstruation After Stopping Birth Control Pills

Delayed menstruation?

I had my period on August 13th, and it hasn't come yet in September; today is the 11th.
I stopped taking the birth control pills after two months of use, and it's been a month since I stopped.
Normally, my period would come about two days early when I was on the pills, so I should have gotten it by now.
I had sexual intercourse on September 5th, with no ejaculation inside; I used a condom at first, but then I didn't, and there was external ejaculation.
During the second time, there was only brief penetration without ejaculation.
I took a pregnancy test today, and the result was negative.
Could the irregularity in my menstrual cycle be due to the birth control pills? Is it likely to be delayed? Should I take another pregnancy test? (I am very worried right now...) Please help me with an answer.

yu, 10~19 year old female. Ask Date: 2015/09/11

Dr. Lü Lizheng reply Obstetrics and Gynecology

The use of emergency contraception can suppress ovulation, thereby preventing pregnancy.
However, once you stop taking the medication, the ovaries that were previously suppressed need some time to resume ovulation.
After ovulation occurs, it may take a while for menstruation to follow.
Therefore, the delay in your period is likely a result of stopping the emergency contraception.
It could be delayed by a few days to a couple of weeks.
It is more accurate to take a pregnancy test about 15 days after sexual intercourse.
If sexual intercourse occurred on September 5 and your period has not arrived by September 20, it is advisable to take another pregnancy test.
Based on your description, the likelihood of pregnancy is low.
Sincerely, Dr.
Li-Cheng Lu, Taoyuan Hospital.

Reply Date: 2015/09/11

More Info

When it comes to understanding delayed menstruation after stopping birth control pills, it's important to recognize that hormonal contraceptives can significantly affect your menstrual cycle. Birth control pills work by regulating hormones in your body to prevent ovulation and create a controlled cycle. When you stop taking them, your body may take some time to readjust to its natural hormonal rhythm, which can lead to irregularities in your menstrual cycle, including delayed periods.

In your case, since you stopped taking the birth control pills after your last period on August 13, it is not uncommon for your cycle to be delayed. The body may require a few cycles to return to its pre-contraceptive state, and this can vary from person to person. Some women may experience a return to normalcy within a month, while others may take several months to regulate their cycles again.

Regarding your sexual activity on September 5, it is important to note that while you used protection and practiced withdrawal, there is still a small risk of pregnancy. However, since you have taken a pregnancy test and it returned negative, this is a reassuring sign. Pregnancy tests are most accurate when taken after a missed period, so if your period does not arrive soon, you may want to retest in a week or so for confirmation.

In terms of your concern about whether the birth control pills are causing your delayed period, it is likely a result of your body adjusting to the hormonal changes after discontinuation. Stress, changes in weight, and other factors can also contribute to menstrual irregularities. If your period does not arrive within a few weeks, or if you experience other concerning symptoms, it would be wise to consult with a healthcare provider. They can provide further evaluation and guidance tailored to your specific situation.

In summary, delayed menstruation after stopping birth control pills is a common occurrence as your body readjusts to its natural hormonal balance. While the negative pregnancy test is a good sign, if your period continues to be delayed, consider retesting and consulting with a healthcare professional for further advice. It's essential to monitor your body and seek help if you have any concerns about your reproductive health.

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