Can You Get Pregnant During Your Period? Safe Days - Obstetrics and Gynecology

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Probability of Pregnancy


Hello doctor, I apologize for the inconvenience.
I would like to ask, on the third day of my period, I had unprotected intercourse, and on the fourth day, there was only brown discharge left.
Is there a chance of pregnancy? Do I need to take any medication? Today is already the fourth day.
Thank you, doctor.
I read online that having your period is considered a safe period, but there are various articles on the internet, so I wanted to ask for clarification.
Thank you, doctor.

Xuan, 10~19 year old female. Ask Date: 2023/06/10

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, you should be within the safe period.
If you're still concerned, you might consider taking emergency contraception.
Wishing you good health.

Reply Date: 2023/06/10

More Info


When it comes to the question of whether you can get pregnant during your period, it's essential to understand the biology of the menstrual cycle and the factors that influence fertility. The menstrual cycle is typically around 28 days long, but it can vary from person to person. It consists of several phases: the menstrual phase, the follicular phase, ovulation, and the luteal phase.

During menstruation, which usually lasts from 3 to 7 days, the uterine lining sheds, and this is when bleeding occurs. Many people believe that having unprotected sex during this time is safe and that the chances of pregnancy are low. However, this is not entirely accurate.

Sperm can live inside the female reproductive tract for up to 5 days under optimal conditions. If you have unprotected sex towards the end of your period, and you ovulate shortly after, there is a possibility that the sperm could still be viable when the egg is released. Ovulation typically occurs around the midpoint of the cycle, but this can vary significantly depending on individual factors such as cycle length and regularity. For someone with a shorter cycle, ovulation could occur soon after the period ends, increasing the risk of pregnancy if unprotected intercourse occurs during menstruation.

In your specific case, having unprotected sex on the third day of your period and then again on the fourth day, when you mentioned only having brown discharge, does carry a risk of pregnancy, albeit a lower one compared to other times in the cycle. The brown discharge you are experiencing is often old blood, which is common at the end of a menstrual period. However, it is crucial to remember that every person's cycle is unique, and factors such as stress, hormonal changes, and health conditions can affect ovulation timing.

If you are concerned about the possibility of pregnancy, you may consider taking emergency contraception, commonly known as the "morning-after pill." This is most effective when taken as soon as possible after unprotected intercourse, ideally within 72 hours, but some types can be effective up to 5 days later. It's important to consult with a healthcare professional to discuss your options and determine the best course of action based on your situation.

In summary, while the likelihood of getting pregnant during your period is lower, it is not impossible. If you are actively trying to avoid pregnancy, using contraception consistently and correctly is the best approach. If you have further questions or concerns about your menstrual cycle, fertility, or contraception, it is advisable to speak with a healthcare provider who can offer personalized advice and support.

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