Abnormal Bleeding: Could It Be Pregnancy or Just Irregular Periods? - Obstetrics and Gynecology

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Abnormal bleeding, menstrual irregularities, could they indicate pregnancy?


On June 4th, I had intercourse with my boyfriend using a condom, and it lasted about five minutes.
Afterward, I realized that it was during my fertile period, and my app indicated that my period was due on June 20th.
I got my period on June 19th and it ended on June 25th, with the color and flow similar to my previous menstrual cycles.
However, 11 days later, on July 7th, I experienced light brown spotting that lasted until July 13th.
Then, on July 17th, I had a small amount of bright red and brown blood.
Could this be a sign of pregnancy, or is it just a disruption of my menstrual cycle? What could these symptoms indicate?

zero, 10~19 year old female. Ask Date: 2024/07/18

Dr. Chen Zhiyu reply Obstetrics and Gynecology


Hello, based on your description, the situation in July may indicate menstrual irregularities or abnormal bleeding outside of the normal menstrual period following a regular cycle in June.
It is recommended that you visit a gynecologist for a check-up.
Thank you.

Reply Date: 2024/07/18

More Info


Abnormal bleeding during the menstrual cycle can often lead to confusion, especially when considering the possibility of pregnancy. In your case, it appears that you experienced what seems to be a normal menstrual cycle followed by some irregular bleeding. Let's break down your situation and address your concerns.

1. Understanding Your Menstrual Cycle: The average menstrual cycle is typically around 28 days, but it can vary significantly from person to person. You mentioned that your app indicated your next period would start on June 20, and you had what appeared to be a normal period from June 19 to June 25. This suggests that your cycle was functioning as expected at that time.

2. Post-Menstrual Bleeding: The bleeding you experienced starting on July 7, which was coffee-colored and lasted until July 13, could be attributed to several factors. One possibility is that this could be implantation bleeding, which occurs when a fertilized egg attaches to the uterine lining. However, this is typically lighter and shorter than a regular period. Given that you had a full menstrual cycle just prior, it is less likely that this is implantation bleeding.

3. Irregular Bleeding: The irregular bleeding you experienced on July 17, which included both bright red and coffee-colored blood, could be due to a variety of reasons, including hormonal fluctuations, stress, changes in weight, or even the use of contraceptives. It’s also possible that this could be a sign of an early pregnancy, especially if you have missed your next expected period. However, since you had a normal period in June, it may be more indicative of irregular cycles rather than pregnancy.

4. Pregnancy Testing: If you suspect you might be pregnant, the most reliable way to confirm this is through a home pregnancy test or a blood test at a healthcare provider. Home pregnancy tests are most accurate when taken after a missed period. If you take a test and it’s negative but you still suspect pregnancy, it may be worth repeating the test a few days later or consulting with a healthcare professional.

5. When to Seek Medical Attention: If you experience heavy bleeding, severe pain, or any other concerning symptoms, it is important to seek medical attention. These could be signs of a miscarriage or other complications. Additionally, if your irregular bleeding continues or worsens, it would be wise to consult with a healthcare provider to rule out any underlying conditions.

6. Lifestyle Considerations: Factors such as stress, diet, exercise, and overall health can impact your menstrual cycle. Keeping track of your cycle, any symptoms you experience, and any changes in your lifestyle can help you and your healthcare provider better understand your situation.

In summary, while the irregular bleeding you are experiencing could be related to hormonal fluctuations or other benign factors, it is essential to monitor your symptoms closely. If you have concerns about pregnancy or if the bleeding continues, I recommend taking a pregnancy test and consulting with a healthcare provider for further evaluation. They can provide personalized advice and help you understand what might be happening with your body.

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