What's the Pregnancy Risk After Protected Intercourse Before Ovulation? - Obstetrics and Gynecology

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What is the likelihood? Is there a chance of getting pregnant?


My menstrual period was from August 9 to August 15, and my ovulation day was August 27.
We had intercourse on August 26, the day before ovulation, using a condom.
We had intercourse twice, both times with a condom.
What is the likelihood of getting pregnant in this situation? I took emergency contraception right after.
On August 27, I still have some pain down there and I'm worried because it was the day before ovulation.
What should I do?

Min, 10~19 year old female. Ask Date: 2019/08/27

Dr. Huang Jianzhong reply Obstetrics and Gynecology


My menstrual period was from August 9 to August 15, and my ovulation day was August 27.
We had intercourse on August 26, the day before ovulation, using a condom.
We had intercourse twice, both times with a condom.
What is the likelihood of getting pregnant? At that time, I also took emergency contraception.

Answer: The likelihood of pregnancy is low.

P.S.
On August 27, I experienced some pain below and I'm not sure what to do.
I'm very worried because it was the day before ovulation.

Reply Date: 2019/08/27

More Info


When assessing the risk of pregnancy after protected intercourse, especially in relation to ovulation, it's essential to understand a few key concepts regarding the menstrual cycle, ovulation, and the effectiveness of contraceptive methods.

First, let's clarify the timing of ovulation. Ovulation typically occurs about 14 days before the start of your next menstrual period. In your case, if your menstrual cycle started on August 9 and your ovulation was expected on August 27, then the day before ovulation (August 26) is indeed a critical time in your cycle. This is when the chances of conception are highest, as the egg is released and can be fertilized by sperm.

Regarding your question about the use of condoms, it is important to note that condoms are a reliable form of contraception when used correctly. They are designed to prevent sperm from entering the vagina, thus reducing the risk of pregnancy. However, for maximum effectiveness, condoms should be worn from the beginning to the end of sexual intercourse. If there was any moment during intercourse when the condom was not used properly (e.g., it was put on after penetration), there is a risk of sperm being present, which could lead to pregnancy.

You mentioned that you took emergency contraception (the "morning-after pill") after the intercourse. Emergency contraception is most effective when taken as soon as possible after unprotected intercourse, ideally within 72 hours, but it can be effective up to 5 days after. Since you took it after the intercourse on August 26, this should significantly reduce your risk of pregnancy. However, it is not 100% effective, and its effectiveness can be influenced by factors such as your body weight and where you are in your menstrual cycle.

As for the discomfort you are experiencing after taking the emergency contraception, it is not uncommon to have side effects such as cramping or changes in your menstrual cycle after taking these pills. These side effects can occur as your body adjusts to the hormonal changes induced by the medication. If the pain persists or worsens, or if you have any other concerning symptoms, it would be wise to consult a healthcare professional for further evaluation.

In summary, while the risk of pregnancy is higher during the days leading up to ovulation, using condoms correctly significantly reduces that risk. Taking emergency contraception further lowers the chance of pregnancy after a contraceptive failure. If you have concerns about your symptoms or the effectiveness of your contraceptive methods, seeking advice from a healthcare provider is always a good step. They can provide personalized guidance based on your health history and current situation.

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