Could I Be Pregnant? Symptoms and Risks - Obstetrics and Gynecology

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It sounds like you have a lot on your mind regarding the possibility of pregnancy and the symptoms you are experiencing. Let's break down your situation and address your concerns.

First, based on the timeline you provided, you had your last menstrual period on June 11, and you engaged in unprotected sexual intercourse on July 10. Given that sperm can live inside the female reproductive tract for up to five days, there is a possibility that you could be pregnant from either of those encounters, especially if you have a regular menstrual cycle.
The symptoms you mentioned, such as breast tenderness (which you referred to as "涨奶" or milk swelling), abdominal pain, and diarrhea, can be associated with early pregnancy, but they can also be attributed to other factors, including hormonal changes or stress. Breast tenderness is a common early sign of pregnancy due to increased hormone levels, particularly progesterone. However, it is important to note that not all women experience this symptom, and its absence does not rule out pregnancy.

The fact that your menstrual flow has been lighter than usual could also be a sign of pregnancy, but it could also be influenced by lifestyle factors such as stress, diet (like consuming cold drinks), and lack of sleep. Stress and lifestyle changes can significantly affect your menstrual cycle, leading to irregularities.

Given that you experienced breast swelling on July 17, which is about a week after your last sexual encounter, it would be advisable to take a home pregnancy test. These tests are generally accurate if taken after a missed period, but since your cycles seem irregular, you might want to test sooner. If you test positive, it would confirm pregnancy, and if negative but you still suspect pregnancy, consider retesting a few days later.

Additionally, if you are experiencing abdominal pain and diarrhea, it is essential to monitor these symptoms. While mild abdominal discomfort can be common in early pregnancy, severe pain or persistent diarrhea should prompt a visit to a healthcare provider to rule out other conditions, such as an infection or gastrointestinal issues.

In summary, while there is a possibility of pregnancy based on your sexual encounters and the symptoms you are experiencing, the best course of action is to take a home pregnancy test. If you have any concerns about your symptoms or if they worsen, do not hesitate to reach out to a healthcare professional for further evaluation and guidance. Remember, early prenatal care is crucial for a healthy pregnancy, so if you are pregnant, scheduling an appointment with your healthcare provider would be beneficial.