Missed Period: Could It Be Pregnancy After Unprotected Intercourse? - Obstetrics and Gynecology

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Menstruation has not occurred?


Your girlfriend's menstrual period was expected to start yesterday or today, but it has not arrived yet.
On April 16, there was unprotected sexual intercourse with withdrawal.
However, in the days leading up to her expected period, she experienced abdominal cramps and breast tenderness.
Is there a possibility of pregnancy?

Li, 10~19 year old female. Ask Date: 2016/05/03

Dr. Zhang Kunmin reply Obstetrics and Gynecology


Hello, the questioner: There is a possibility of pregnancy even if ejaculation has not occurred during intercourse, as pre-ejaculatory fluid may contain sperm.
Additionally, early pregnancy does not always present specific symptoms, and subjective symptoms cannot be used to make a determination.
It is advisable to check for pregnancy if your period is more than a week late.
Thank you! Wishing you peace and health.
Dr.
Chang

Reply Date: 2016/05/03

More Info


When it comes to missed periods and the possibility of pregnancy after unprotected intercourse, there are several factors to consider. Based on your description, it seems that your girlfriend's menstrual cycle is typically regular, and she has experienced symptoms such as abdominal cramps and breast tenderness, which can be indicative of either premenstrual syndrome (PMS) or early pregnancy.

Given that you had unprotected intercourse on April 16, and her period is now late, there is indeed a possibility of pregnancy. Sperm can survive in the female reproductive tract for up to five days, so if she ovulated shortly after your encounter, conception could have occurred. The timing of ovulation is crucial; if her cycle is typically around 28 days, ovulation usually occurs around day 14. If she had intercourse around that time, the chances of pregnancy increase significantly.

The symptoms she is experiencing—abdominal pain and breast tenderness—are common in both PMS and early pregnancy. However, the absence of her period is a more definitive sign that warrants further investigation. The best course of action at this point would be for her to take a home pregnancy test. These tests are designed to detect the hormone human chorionic gonadotropin (hCG), which is produced shortly after a fertilized egg attaches to the uterine lining. For the most accurate results, it is advisable to wait until at least the first day of her missed period to take the test.

If the home pregnancy test is positive, it would be wise for her to schedule an appointment with a healthcare provider for confirmation and to begin prenatal care. If the test is negative and her period still does not arrive, she should consult a doctor to rule out other potential causes for the missed period, such as hormonal imbalances, stress, significant weight changes, or other medical conditions.

In summary, there is a possibility of pregnancy given the circumstances you described. The best immediate step is to take a home pregnancy test, and depending on the result, follow up with a healthcare professional for further guidance. It's important to remember that while missed periods can be a sign of pregnancy, they can also be caused by various other factors, so professional evaluation is key for a comprehensive understanding of her health.

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