Delayed Menstruation: Pregnancy or Irregular Cycle? - Obstetrics and Gynecology

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Delayed menstruation?


Hello, doctor.
My period was due on January 21, but I went to the gynecologist and took medication to induce my period early, so it started on January 17.
My expected period for February was around February 13 or 14, but it still hasn't arrived today.
During this time, I had unprotected intercourse.
On February 19, I noticed brown discharge, and on February 22, I took a home pregnancy test that showed only one line.
Recently, I've been experiencing sharp pains on both sides of my abdomen and an increase in discharge.
Is it possible that I am pregnant, or is this just irregular menstruation? I have had experiences with ovarian cysts 3 or 4 times before; could this be a recurrence?

C, 20~29 year old female. Ask Date: 2016/02/27

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, if your period is more than a week late, it is advisable to see a gynecologist.
Wishing you good health.

Reply Date: 2016/02/27

More Info


Understanding delayed menstruation can be a complex issue, especially when considering factors such as potential pregnancy, irregular cycles, and underlying health conditions. In your case, the delayed menstruation following the use of medication to induce your period, along with the recent symptoms you are experiencing, raises several important points to consider.

Firstly, it is essential to recognize that hormonal medications can significantly impact your menstrual cycle. The use of a medication to induce menstruation can sometimes lead to irregular cycles in subsequent months. This means that even if you expect your period to arrive on a specific date, it may not occur as anticipated due to the hormonal fluctuations caused by the medication. Therefore, it is possible that your delayed menstruation is a result of this hormonal disruption rather than an indication of pregnancy.

However, the fact that you have engaged in unprotected sexual intercourse during this time does introduce the possibility of pregnancy. The presence of brown discharge on February 19 could be indicative of implantation bleeding, which occurs when a fertilized egg attaches to the uterine lining. This can sometimes be mistaken for a light period. Additionally, the abdominal pain you are experiencing could be related to various factors, including ovulation, premenstrual symptoms, or early pregnancy.

The negative pregnancy test on February 22 is also a crucial factor to consider. Home pregnancy tests are generally reliable, but they can yield false negatives, especially if taken too early. If you suspect you might be pregnant, it is advisable to wait a few days and retest, as hormone levels may not have been high enough to detect at the time of your first test.

Regarding your history of ovarian cysts (referred to as "water tumors"), it is important to note that these can also cause irregularities in your menstrual cycle. Cysts can lead to symptoms such as abdominal pain and changes in discharge. If you have a history of recurrent cysts, it is possible that they could be contributing to your current symptoms and menstrual irregularities.

Given your situation, here are some recommendations:
1. Retest for Pregnancy: Wait a few days and take another home pregnancy test. If it remains negative and your period does not arrive, consider consulting your healthcare provider for further evaluation.

2. Monitor Symptoms: Keep track of any additional symptoms you may experience, such as changes in discharge, pain levels, or any other unusual signs.

3. Consult a Healthcare Provider: If your period does not arrive within a week or if your symptoms worsen, it is advisable to see a healthcare provider. They can perform a more sensitive pregnancy test and conduct an ultrasound if necessary to check for any ovarian cysts or other underlying issues.

4. Discuss Your History: When you consult your healthcare provider, be sure to discuss your history of ovarian cysts and any other relevant medical history. This information will help them provide a more accurate diagnosis and treatment plan.

In conclusion, while there is a possibility of pregnancy given your circumstances, it is equally plausible that your delayed menstruation is due to hormonal changes from medication or the presence of ovarian cysts. Monitoring your symptoms and consulting with a healthcare provider will be essential in determining the cause of your delayed menstruation and addressing any underlying health concerns.

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