Pregnancy Chances: Key Questions and Concerns Explained - Obstetrics and Gynecology

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Pregnancy probability


Hello, Doctor.
My menstrual cycle is about 30 to 40 days (sometimes longer).
My last period started on March 19 and lasted about a week.
I had sexual intercourse on April 7, using a condom, and I withdrew before ejaculation.
However, while cleaning up, I accidentally touched a tissue that had semen on it to my vulva, but I washed it off immediately.
I took pregnancy tests on April 17 and April 26 (different brands), both of which were negative.
However, my period has not arrived this month, and I am experiencing some dull pain in my abdomen and mild tenderness in my breasts (which I have felt before my period as well).
I would like to ask: 1.
What is the likelihood of pregnancy in this situation? 2.
Does the time of day affect the accuracy of the pregnancy test? 3.
Should I take another pregnancy test?

123, 10~19 year old female. Ask Date: 2022/04/26

Dr. Zhang Kunmin reply Obstetrics and Gynecology


Hello, the failure rate of using condoms for contraception is over 5%, which makes it less reliable compared to other methods.
It is generally not recommended to rely solely on condoms for contraception.
There are many factors that can affect the menstrual cycle or cause intermenstrual bleeding, and pregnancy cannot be determined based solely on subjective symptoms.
Therefore, if your period is more than a week late or if it hasn't arrived by April 30, it is advisable to take a urine test to check for pregnancy.
Thank you! Thus, if your period is more than a week late, it is still important to check for pregnancy.
Thank you! Wishing you safety and health, Dr.
Zhang.

Reply Date: 2022/04/26

More Info


Understanding your concerns regarding pregnancy chances is crucial, especially when you are experiencing symptoms that may indicate a potential pregnancy. Let's address your questions one by one, while also providing some context and medical insights.

1. Pregnancy Chances: Based on your description, the likelihood of pregnancy seems relatively low, especially since you used a condom and took precautions by withdrawing before ejaculation. However, it is important to note that no contraceptive method is 100% effective, and there is a small chance of sperm being present on the external genitalia or in pre-ejaculatory fluid. The fact that you have taken two pregnancy tests on April 17 and April 26, both of which returned negative results, further suggests that pregnancy is unlikely. However, the absence of your period and the symptoms you are experiencing, such as abdominal discomfort and breast tenderness, could be attributed to various factors, including hormonal fluctuations, stress, or other underlying conditions.

2. Timing of Pregnancy Tests: The timing of when you take a pregnancy test can indeed affect the results. Most home pregnancy tests are designed to detect the hormone hCG (human chorionic gonadotropin), which is produced shortly after a fertilized egg attaches to the uterine lining. Testing too early, especially before your expected period, can lead to false negatives. For the most accurate results, it is generally recommended to test first thing in the morning when hCG levels are highest. However, testing in the evening can still yield accurate results, especially if you are already past the expected date of your period.

3. Re-testing for Pregnancy: Given that your period is late and you are experiencing symptoms, it may be wise to take another pregnancy test. If you choose to do so, consider waiting a few days to allow more time for hCG levels to rise if you are indeed pregnant. If the test is still negative and your period does not arrive, it would be advisable to consult with a healthcare provider. They can perform a blood test, which is more sensitive than home tests, and can also evaluate other potential causes for your symptoms and missed period.

In addition to these points, it's important to consider that stress, changes in weight, illness, or significant lifestyle changes can also affect your menstrual cycle. If you are feeling anxious about the possibility of pregnancy, it may be helpful to discuss your concerns with a healthcare professional who can provide guidance tailored to your situation.

Lastly, if you continue to experience symptoms such as abdominal pain or breast tenderness, or if you have any other concerning symptoms, seeking medical advice is essential. A healthcare provider can help determine the underlying cause and provide appropriate care or reassurance.

In summary, while the chances of pregnancy seem low based on your precautions and negative test results, it is always best to monitor your body and consult with a healthcare professional if you have ongoing concerns. Your health and peace of mind are paramount, and professional guidance can help you navigate this situation effectively.

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