Pregnancy Chances After Menstrual Cycle and Medication - Obstetrics and Gynecology

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Probability of Pregnancy


Hello Doctor, from December 10 to December 28, 2015, my wife and I had frequent sexual intercourse, and my wife also tracked her menstrual cycle and took menstrual delay medication for about three days.
After stopping the medication on December 28, 2015, her period started.
I would like to ask if there is still a chance of pregnancy in this situation.
From my understanding, if menstruation has occurred, then there is no possibility of a baby.
Thank you for your response!

fu, 20~29 year old female. Ask Date: 2016/01/11

Dr. Tian Yiwen reply Obstetrics and Gynecology


Some early pregnancy bleeding may not be easily distinguished from a normal menstrual period.
If there is a possibility of pregnancy, it is still recommended to purchase a home pregnancy test to check.

Reply Date: 2016/01/11

More Info


Understanding the chances of pregnancy after a menstrual cycle and the impact of medication is a common concern for many couples trying to conceive. In your case, it seems that your wife took medication to delay her menstrual cycle and then experienced her period after stopping the medication. This situation raises several important points regarding fertility and the menstrual cycle.

Firstly, it is essential to understand how the menstrual cycle works. A typical menstrual cycle lasts about 28 days, but it can vary from 21 to 35 days in different women. Ovulation, which is the release of an egg from the ovary, usually occurs around the midpoint of the cycle, approximately 14 days before the start of the next period. If your wife had her period on December 28 after stopping the medication, it indicates that she likely did not ovulate during the time she was taking the medication, as the hormonal changes induced by the medication can delay ovulation.

Regarding the chances of pregnancy, if your wife had her period, it typically means that she did not conceive during that cycle. Menstruation is the shedding of the uterine lining, which occurs when a fertilized egg does not implant. Therefore, if she had a normal menstrual period, the likelihood of pregnancy from that cycle is very low.

However, it is important to consider the timing of sexual intercourse in relation to ovulation. If you and your wife had frequent intercourse during her fertile window (the days leading up to and including ovulation), there is a chance of conception. But since she had her period, it is unlikely that conception occurred in that cycle.

In terms of medication, the use of menstrual delay medications can affect the timing of ovulation and the menstrual cycle. If your wife is planning to conceive, it is advisable to avoid such medications unless prescribed by a healthcare provider. Additionally, if there are concerns about fertility or the menstrual cycle, consulting with a healthcare professional or a fertility specialist can provide personalized advice and guidance.

For couples trying to conceive, it is also beneficial to maintain a healthy lifestyle, including a balanced diet, regular exercise, and managing stress. Certain vitamins and supplements, such as folic acid, are recommended for women planning to become pregnant, as they can help support a healthy pregnancy.

In summary, since your wife had her period after stopping the medication, the chances of pregnancy from that cycle are very low. If you are both looking to conceive, tracking her ovulation and understanding her menstrual cycle can be helpful. If there are ongoing concerns about fertility, seeking advice from a healthcare provider is a good step forward.

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