Signs of Pregnancy: What to Know After Unprotected Sex at 15 - Obstetrics and Gynecology

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I want to know if I am pregnant?


Hello Doctor: I am 15 years old.
I had sexual intercourse on the second day of my educational examination.
At that time, my menstrual period was nearing its end and there was not much bleeding.
The boy used a condom the first time, but did not the second time.
However, he did not ejaculate.
Now it is June, and my period has not arrived this month, so I am very scared of being pregnant.
I hope the doctor can give me some advice.

Tusi, 10~19 year old female. Ask Date: 2020/06/14

Dr. Wu Xianghui reply Obstetrics and Gynecology


Abnormal discharge caused by vaginal infections can affect pregnancy.
Please perform a pregnancy test on your own or consult a gynecologist for evaluation four weeks after sexual intercourse.

Reply Date: 2020/06/14

More Info


When it comes to the signs of pregnancy, especially after unprotected sex, it's important to understand the biological processes involved and the implications of your situation. Given that you are 15 years old and have recently engaged in sexual activity, it is crucial to approach this topic with care and awareness.

Firstly, let's address the concern about pregnancy. The menstrual cycle can be unpredictable, especially at a younger age when your body is still developing. If you had unprotected sex, even if the male partner did not ejaculate, there is still a risk of pregnancy due to pre-ejaculate fluid, which can contain sperm. The fact that your period is late is understandably concerning, and it is one of the primary signs of pregnancy. However, stress, hormonal changes, and other factors can also cause menstrual irregularities.

To assess whether you might be pregnant, consider the following signs and symptoms:
1. Missed Period: A missed period is often the first sign of pregnancy. If your cycle is typically regular and you are late, it may warrant further investigation.

2. Pregnancy Tests: Home pregnancy tests are widely available and can provide quick results. They work by detecting the hormone hCG (human chorionic gonadotropin) in your urine, which is produced after a fertilized egg attaches to the uterine lining. For the most accurate results, it’s best to take the test after your missed period.

3. Other Symptoms: Early pregnancy symptoms can include nausea, breast tenderness, fatigue, and frequent urination. However, these symptoms can also be related to other factors, such as stress or illness.

4. Consult a Healthcare Provider: If you are concerned about the possibility of being pregnant, it is advisable to consult a healthcare provider. They can perform a blood test, which is more sensitive than a urine test and can confirm pregnancy earlier.

5. Understanding Your Options: If you find out that you are pregnant, it is essential to understand your options and the implications of each. This includes considering your health, emotional well-being, and future plans. It is also important to discuss this with a trusted adult or healthcare professional who can provide guidance and support.

6. Sexual Health Education: Engaging in sexual activity at a young age comes with responsibilities. It is crucial to educate yourself about safe sex practices, including the use of condoms and other forms of contraception, to prevent unintended pregnancies and sexually transmitted infections (STIs).

In conclusion, while the fear of being pregnant can be overwhelming, it is important to take proactive steps to confirm your status and seek guidance. Remember, you are not alone in this situation, and there are resources available to help you navigate your concerns. Whether it’s through a healthcare provider, a trusted adult, or a sexual health clinic, seeking support is a vital step in addressing your worries and making informed decisions about your health and future.

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