Am I Pregnant? Menstrual Cycles and Pregnancy Risks - Obstetrics and Gynecology

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Doctor, my last menstrual period started on April 18 and ended on April 23.
I had unprotected intercourse on April 30 and May 2 and 3, with withdrawal before ejaculation.
I'm worried about the possibility of pregnancy, but my period arrived today, May 20, and I have some abdominal discomfort and menstrual cramps, which should indicate that I'm not pregnant, right? Or could it be a false period? Should I take a pregnancy test? Additionally, I had intercourse with withdrawal on May 16 and 17; is that considered a safe period? My menstrual cycle is usually very regular.
Thank you, doctor.

zinni, 20~29 year old female. Ask Date: 2014/05/20

Dr. Dong Yuhong reply Obstetrics and Gynecology


Hello: The use of withdrawal as a method of contraception is not safe, so if there are any irregularities in menstruation or any physical discomfort, it is important to be aware of the possibility of unintended pregnancy.
Just because previous menstrual cycles have been regular does not guarantee that the next one will be as well.
If relying on the calendar method or withdrawal for contraception, one should be cautious about the risk of unintended pregnancy.
Thank you~

Reply Date: 2014/05/20

More Info


Based on your description, it seems that you are concerned about the possibility of being pregnant after having unprotected sexual intercourse during your menstrual cycle. Let's break down your situation and address your concerns regarding pregnancy, menstrual cycles, and the need for pregnancy testing.

Firstly, you mentioned that your last menstrual period (LMP) started on April 18 and ended on April 23. You had unprotected intercourse on April 30, May 2, and May 3, and then you received your period on May 20. Given that you have a regular menstrual cycle, the arrival of your period is a strong indicator that you are not pregnant. Menstrual cycles typically last about 28 days, but they can vary from person to person. If your cycle is regular and you received your period on time, it is unlikely that you are pregnant.

Regarding the concern about "false menstruation," it is important to note that while some women may experience light bleeding or spotting during early pregnancy, this is usually different from a regular menstrual period. If the bleeding you experienced on May 20 was similar to your typical menstrual flow, it is likely that it is indeed your period and not a sign of pregnancy.

As for the sexual encounters on May 16 and May 17, if you were tracking your cycle accurately, these dates would fall within the time frame when you might be less likely to conceive, especially if you have a regular cycle. However, it is essential to understand that sperm can survive in the female reproductive tract for up to five days, so if ovulation occurs shortly after your sexual activity, there is still a possibility of pregnancy.

If you are still feeling uncertain or anxious about the possibility of being pregnant, taking a home pregnancy test can provide clarity. These tests are designed to detect the hormone human chorionic gonadotropin (hCG), which is produced during pregnancy. For the most accurate results, it is advisable to take the test after your expected period date, as this allows enough time for hCG levels to rise if you are pregnant.

In summary, based on the information you provided, it appears that you are not pregnant since you have received your period. However, if you continue to have concerns or if your menstrual cycle becomes irregular, it may be beneficial to consult with a healthcare provider for further evaluation and guidance. Additionally, if you are considering future sexual activity, discussing contraceptive options with your healthcare provider can help you make informed decisions about family planning and pregnancy prevention.

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