Can You Get Pregnant After Period Sex? Your Cycle - Obstetrics and Gynecology

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Can you get pregnant after having intercourse before your period?


If you had unprotected sexual intercourse from February 13 to 22 and then got your period on February 23, but your period is late this month (March), it is possible that you could be pregnant.
However, since you had your period after the sexual activity, it is less likely that you are pregnant from that cycle.
If your menstrual cycle is usually very regular and you are experiencing a delay, it may be a good idea to take a pregnancy test or consult a healthcare professional for further evaluation.

Lü, 20~29 year old female. Ask Date: 2016/03/23

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, the chances of pregnancy are low, but it is best to take preventive measures beforehand.
Do not rely on the safe period.
If your period is more than a week late, consider consulting a gynecologist.
Wishing you good health.

Reply Date: 2016/03/23

More Info


Yes, it is possible to get pregnant from having sex right after your period, although the likelihood can vary based on several factors, including the timing of ovulation and the lifespan of sperm.

To understand this better, let’s break down the menstrual cycle and how pregnancy occurs. The average menstrual cycle lasts about 28 days, but it can range from 21 to 35 days in adults. The cycle begins on the first day of your period and ends the day before your next period starts. Ovulation typically occurs around the midpoint of the cycle, usually about 14 days before your next period. This is when an egg is released from the ovary and is available for fertilization.

Sperm can live inside a woman’s reproductive tract for up to five days. Therefore, if you have sex towards the end of your period, and you ovulate shortly after, there is a possibility that the sperm may still be viable when the egg is released. For example, if your period ends on February 22 and you ovulate around March 7, having sex from February 13 to 22 could potentially lead to pregnancy if you ovulate soon after your period.

In your case, you mentioned that your period came on February 23 and that you have a very regular cycle. If your cycles are typically consistent, it is likely that you ovulate around the same time each month. If your cycle is around 28 days, ovulation would likely occur around day 14, which would be around March 7. If you had unprotected sex during your period and sperm survived until ovulation, there is a chance of pregnancy.

Now, regarding your delayed period in March, several factors could contribute to this. Stress, changes in routine, illness, or hormonal imbalances can all affect your menstrual cycle. If you are concerned about a possible pregnancy, the best course of action is to take a home pregnancy test. These tests are most accurate when taken after a missed period, as they measure the hormone hCG (human chorionic gonadotropin), which is produced during pregnancy.

If the test is negative and your period does not arrive, it may be wise to consult a healthcare provider to explore other potential reasons for the delay. They can provide further insights and possibly conduct additional tests to determine the cause of your missed period.

In summary, while it is possible to conceive from sex after your period, the timing of ovulation is crucial. If you are experiencing a delayed period, taking a pregnancy test is a good first step to determine if you are pregnant. If you have further concerns or irregularities in your cycle, seeking medical advice is recommended.

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