Pregnancy Risks After Unprotected Intercourse: Your Questions Answered - Obstetrics and Gynecology

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When it comes to understanding the risks of pregnancy after unprotected intercourse, it's essential to consider several factors, including the timing of ovulation, the nature of the sexual encounter, and the results of pregnancy tests. Based on the details you've provided, let's break down your situation.

You mentioned that your last menstrual period (LMP) started on November 25 and ended on November 31 (assuming you meant December 1). Following that, you had unprotected intercourse around December 10, which is crucial because it falls within a time frame where ovulation could occur. Typically, ovulation happens about 14 days before the start of your next period, which means if your cycle is regular (around 28 days), you would likely ovulate around December 9-11. This timing suggests that there is a possibility of conception occurring from the intercourse on December 10, especially since sperm can live inside the female reproductive tract for up to five days.

However, you also mentioned that after the sexual encounter, you used a condom for the remainder of the time, which significantly reduces the risk of pregnancy. The fact that your boyfriend did not ejaculate during the initial unprotected intercourse further lowers the likelihood of pregnancy, although pre-ejaculate fluid can contain sperm.

On December 23, you expected your period, but it did not arrive. You took a pregnancy test on December 24, which showed a negative result. This is an important point because home pregnancy tests are generally reliable when taken after a missed period. Since you tested negative, it suggests that you are not pregnant, especially considering that it was only about 14 days post-ovulation when you took the test.

You also mentioned that you visited a gynecologist who confirmed that you were not pregnant and prescribed medication to induce your period. This indicates that your body may be experiencing a delay in menstruation, which can happen for various reasons, including stress, hormonal imbalances, or other factors unrelated to pregnancy.

In summary, based on the information provided, the likelihood of pregnancy seems low due to the following reasons:
1. The timing of your unprotected intercourse was close to your ovulation period, but the use of a condom afterward provides significant protection.

2. The negative pregnancy test taken shortly after your missed period is a strong indicator that you are not pregnant.

3. The prescription for medication to induce your period suggests that your healthcare provider does not believe you are pregnant.

If your period does not arrive after taking the medication, or if you have any further concerns, it would be wise to follow up with your healthcare provider for additional evaluation. It's also important to remember that menstrual cycles can vary, and occasional delays are not uncommon.

In conclusion, while there is always a risk of pregnancy with unprotected intercourse, the combination of your circumstances suggests that the likelihood is low. If you have further questions or concerns about your reproductive health, don't hesitate to reach out to your healthcare provider for personalized advice and support.