Pregnancy Chances After Using Emergency Contraceptives - Obstetrics and Gynecology

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Probability of Pregnancy


Hello, doctor.
I really want to have a child.
I have been pregnant twice, but both times resulted in a miscarriage.
My partner and I have not used any contraception, yet we have still been unable to conceive.
I have heard that taking emergency contraceptive pills in my younger years may be related to this (although I have never consulted a doctor about it).
I took emergency contraceptive pills 2-3 times, at least 10 years ago.
I would like to know if this could be a contributing factor.
What are the chances of me being able to conceive in the future?

Qidai Xiwang, 30~39 year old female. Ask Date: 2021/07/06

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, generally it is unrelated, and you have been pregnant twice.
Has it been over a year since your last pregnancy? If not, just wait a bit longer.
If it has been over a year, it is advisable to see a gynecologist.
Wishing you good health.

Reply Date: 2021/07/06

More Info


When considering the chances of pregnancy after using emergency contraceptives, it's important to understand how these medications work and their potential long-term effects on fertility. Emergency contraceptives, such as Plan B (levonorgestrel) and Ella (ulipristal acetate), are designed to prevent pregnancy after unprotected intercourse or contraceptive failure. They work primarily by delaying ovulation, inhibiting fertilization, or preventing implantation of a fertilized egg.

Research indicates that using emergency contraceptives does not have a lasting impact on a woman's fertility. The use of these medications, even multiple times, does not affect a woman's ability to conceive in the future. The concern that taking emergency contraceptives could lead to infertility is largely unfounded. Fertility is influenced by a variety of factors, including age, overall health, and underlying medical conditions, rather than the occasional use of emergency contraception.

In your case, since you mentioned that you have been trying to conceive for some time without success, it may be beneficial to explore other potential factors that could be affecting your fertility. These can include:
1. Age: Fertility naturally declines with age, particularly after the age of 35. If you are in this age bracket, it may take longer to conceive.

2. Health Conditions: Conditions such as polycystic ovary syndrome (PCOS), endometriosis, or thyroid disorders can affect ovulation and fertility. A thorough evaluation by a healthcare provider can help identify any underlying issues.

3. Lifestyle Factors: Factors such as smoking, excessive alcohol consumption, poor diet, and lack of exercise can negatively impact fertility. Making healthy lifestyle choices can improve your chances of conception.

4. Timing and Frequency of Intercourse: Understanding your ovulation cycle and timing intercourse accordingly can significantly increase your chances of conception. Tools like ovulation predictor kits or fertility tracking apps can assist in identifying your most fertile days.

5. Partner's Health: Male fertility is equally important. Factors such as sperm count, motility, and overall reproductive health can affect the likelihood of conception. It may be worthwhile for your partner to undergo a fertility evaluation as well.

If you have been trying to conceive for over a year (or six months if you are over 35), it is advisable to consult a fertility specialist. They can provide a comprehensive evaluation and recommend appropriate interventions based on your specific situation.

In summary, while the use of emergency contraceptives does not impact future fertility, there are numerous other factors that could be influencing your ability to conceive. A thorough evaluation by a healthcare professional can provide clarity and guide you on the next steps to take in your journey toward parenthood. Remember, fertility is a complex issue, and seeking professional advice is a proactive step in understanding and addressing your concerns.

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