Can You Get Pregnant from Intercourse on Day Five of Your Period? - Obstetrics and Gynecology

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Having intercourse on the fifth day of menstruation?


I had intercourse with my boyfriend on the fifth day of my period, and he accidentally ejaculated inside me.
My menstrual cycle is a bit longer than 28 days.
I'm unsure about the likelihood of pregnancy in this situation.

Mi Mi, 20~29 year old female. Ask Date: 2020/05/24

Dr. Cai Yonglong reply Obstetrics and Gynecology


The likelihood is low, but there is still a chance of occurrence.

Reply Date: 2020/05/24

More Info


The question of whether you can get pregnant from intercourse on the fifth day of your period is a common concern, especially for those with irregular menstrual cycles. To address this, let's first understand the menstrual cycle and the factors that influence ovulation and fertility.

Typically, a menstrual cycle lasts about 28 days, but it can vary significantly from person to person, ranging from 21 to 35 days or even longer. The cycle begins on the first day of menstruation and ends the day before the next period starts. Ovulation usually occurs around the midpoint of the cycle, approximately 14 days before the next period. However, this timing can vary based on individual factors, including cycle length and hormonal fluctuations.

In a standard 28-day cycle, ovulation occurs around day 14. Sperm can live inside the female reproductive tract for up to five days, which means that if you have intercourse in the days leading up to ovulation, there is a possibility of sperm being present when the egg is released. However, if you have intercourse on day five of your period, it is generally considered to be too early for pregnancy to occur, especially if you have a regular cycle.

However, if your menstrual cycle is longer than 28 days, ovulation may occur later than day 14. For example, in a 35-day cycle, ovulation might happen around day 21. If you have a longer cycle and your ovulation is delayed, there is a possibility that sperm from intercourse on day five could still be viable by the time ovulation occurs, increasing the chances of pregnancy.

Additionally, some women experience irregular cycles or variations in their ovulation timing due to factors such as stress, hormonal imbalances, or medical conditions like polycystic ovary syndrome (PCOS). In such cases, predicting ovulation can be more challenging, and the risk of pregnancy from intercourse during menstruation may be higher.

It's also important to consider that menstrual bleeding can sometimes be mistaken for a period when it may actually be ovulatory bleeding or spotting, which can occur around the time of ovulation. This could further complicate the timing of ovulation and the potential for pregnancy.

In summary, while the likelihood of getting pregnant from intercourse on the fifth day of your period is generally low, it is not impossible, especially if you have a longer menstrual cycle or irregular ovulation. If you are concerned about the possibility of pregnancy, it is advisable to take a home pregnancy test if your next period is late or consult with a healthcare provider for further evaluation and guidance.

For those who are sexually active and wish to avoid unintended pregnancies, using contraception consistently and correctly is essential. Various options are available, including hormonal birth control, condoms, and intrauterine devices (IUDs), each with its own efficacy and suitability based on individual health needs and lifestyle. If you have further questions about your menstrual cycle, ovulation, or contraception, consider discussing them with a healthcare professional who can provide personalized advice and support.

Similar Q&A

Can You Get Pregnant from Intercourse on Day Five of Your Period?

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Dr. Huang Jianzhong reply Obstetrics and Gynecology
Answer: Unlikely to become pregnant.

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Dr. Huang Jianzhong reply Obstetrics and Gynecology
Answer: Unlikely to become pregnant.

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Dr. Cao Guotao reply Obstetrics and Gynecology
Hello, it is generally unlikely to become pregnant, so there is no need to worry. Wishing you good health.

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