Missed Period: Could Recent Sexual Activity Lead to Pregnancy?

Menstruation has not yet arrived?

The expected menstrual period was on March 27.
However, on March 20, there was sexual intercourse with the female partner, but she said it was too painful to continue, although there was some successful penetration with a condom and no ejaculation.
Is there a chance of pregnancy from this? Additionally, there was another instance of sexual intercourse on February 27, the last day of her menstrual period, where there was no successful penetration and ejaculation occurred inside the condom.
Could this also lead to pregnancy? As of now, her period has not arrived.

Niming, 20~29 year old female. Ask Date: 2021/04/10

Dr. Huang Yuande reply Obstetrics and Gynecology

1.
It is theoretically impossible to rule out, unless you use condoms throughout the entire time.
2.
You can confirm the result with a urine pregnancy test one week after your expected menstrual period.

Reply Date: 2021/04/10

More Info

When it comes to the possibility of pregnancy following recent sexual activity, several factors need to be considered. Based on the information provided, it appears that you had sexual intercourse on March 20, with the understanding that it was not fully completed due to discomfort, and you used a condom without ejaculation. You also mentioned having sexual activity on February 27, which was the last day of your menstrual period, and again, there was no successful penetration, with ejaculation occurring inside the condom.

To address your primary concern: the likelihood of pregnancy from the events described is relatively low, but not entirely absent. Here’s why:
1. Contraceptive Efficacy: Condoms are a highly effective form of contraception when used correctly. They not only prevent sperm from entering the vagina but also protect against sexually transmitted infections. However, if the condom was compromised (e.g., if it broke or slipped off), there could be a risk of pregnancy. Since you mentioned that there was no ejaculation during the intercourse on March 20, the risk of pregnancy is further reduced.

2. Timing of Ovulation: Understanding your menstrual cycle is crucial. If your cycle is regular, ovulation typically occurs around 14 days before your next expected period. If your period was due on March 27, ovulation would likely have occurred around March 13. Engaging in sexual activity on March 20, while after ovulation, would generally be less likely to result in pregnancy, especially if ejaculation did not occur.

3. Last Day of Menstrual Period: Engaging in sexual activity on the last day of your period (February 27) also carries a low risk of pregnancy. Sperm can live inside the female reproductive tract for up to five days, but since this was the last day of your period, the chances of sperm surviving long enough to fertilize an egg released during ovulation are minimal.

4. Missed Period: A missed period can be caused by various factors, including stress, hormonal imbalances, changes in weight, or other health issues. If your period is late, it is advisable to take a home pregnancy test for confirmation. These tests are designed to detect the hormone hCG, which is produced during pregnancy.

5. Cryptic Pregnancy: While rare, it’s worth mentioning that some women experience cryptic pregnancies, where they do not realize they are pregnant until much later. However, given the details you've provided, this seems unlikely in your case, especially since you have not experienced typical pregnancy symptoms.

In conclusion, while the chances of pregnancy from the described sexual activities are low, the missed period warrants further investigation. If your period does not arrive soon, consider taking a pregnancy test or consulting with a healthcare provider for further evaluation. They can provide personalized advice and help determine the next steps based on your health history and current situation. Remember, maintaining open communication with your partner about contraception and sexual health is essential for both of your well-being.

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