Concerns About Contraceptive Pills and Ovulation: Am I at Risk of Pregnancy? - Obstetrics and Gynecology

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Issues related to taking contraceptive pills?


I have been taking birth control pills for two months.
I finished the second month's 21-day pack on June 13, and I had unprotected intercourse with ejaculation inside on June 16.
This morning, I noticed a light yellow, transparent discharge that resembles mucus.
I've heard that this occurs during ovulation.
Am I at risk of becoming pregnant?

Xiao Xuan, 30~39 year old female. Ask Date: 2015/06/17

Dr. Zhang Kunmin reply Obstetrics and Gynecology


Hello, if you have been taking your birth control pills regularly for the past two months, the chance of pregnancy due to contraceptive failure is only 0.1%.
I'm not sure if the birth control pills you purchased are in a 21-pill or 28-pill formulation.
If it's a 21-pill pack, you should expect your period to start a few days after finishing pills 6-13.
If your period does not arrive within a week after the expected date, you should take a pregnancy test.
As for the light yellow discharge, it does not necessarily indicate ovulation; you can wait a few days to see if your period comes.
Wishing you peace and health.
Dr.
Zhang

Reply Date: 2015/06/17

More Info


When it comes to concerns about contraceptive pills and the risk of pregnancy, it's essential to understand how these medications work and the factors that can influence their effectiveness. Contraceptive pills, commonly referred to as birth control pills, are designed to prevent ovulation, which is the release of an egg from the ovaries. They typically contain hormones such as estrogen and progestin that work together to inhibit ovulation, thicken cervical mucus, and thin the uterine lining, making it less likely for a fertilized egg to implant.

In your case, you mentioned that you have been taking the contraceptive pill for two months and had unprotected intercourse shortly after completing your second month's regimen. The timing of your sexual activity in relation to your pill schedule is crucial. If you have been taking your pills consistently and correctly—meaning you have not missed any doses and have taken them at the same time each day—then the likelihood of ovulation occurring is significantly reduced.
The discharge you described, which is a clear, stretchy fluid resembling mucus, can indeed be associated with ovulation. However, it is important to note that some women may experience similar cervical mucus changes even while on the pill due to hormonal fluctuations. This does not necessarily indicate that you are ovulating, especially if you have been diligent with your pill regimen.

If you had unprotected intercourse on June 16 after completing your pill pack on June 13, you should consider the following:
1. Timing of the Pill: If you took your last pill on June 13 and started a new pack immediately after the placebo week (assuming you are on a 21/7 regimen), you would still be protected from pregnancy during the placebo week. If you did not start a new pack and were in the placebo week, the risk of ovulation increases, and thus the risk of pregnancy could be higher.

2. Missed Pills: If you missed any pills in the previous cycle or did not take them as directed, this could increase the risk of ovulation and, consequently, the risk of pregnancy.

3. Emergency Contraception: If you are concerned about the possibility of pregnancy, you may consider using emergency contraception (EC) if it has been within 72-120 hours since unprotected intercourse. EC can help prevent pregnancy if taken promptly.

4. Pregnancy Testing: If your period is late or you experience any symptoms of pregnancy, such as nausea or breast tenderness, it would be advisable to take a home pregnancy test for confirmation.

In summary, if you have been taking your contraceptive pills correctly, the risk of pregnancy is low, even if you notice changes in cervical mucus. However, if you have any doubts about your pill usage or if you experience any unusual symptoms, consulting with a healthcare provider can provide you with personalized advice and reassurance. It's always better to err on the side of caution when it comes to reproductive health.

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