Plan B One-Step Emergency Contraceptive: Mechanism and Effects on Fertility
Plan B One-Step Emergency Contraceptive, 1.5 Mg is an emergency contraceptive tablet containing Levonorgestrel 1.5mg, which reduces the chance of pregnancy after unprotected sex. Today, we discuss the effects of the “Plan B” pill on fertility and how it works to prevent pregnancy. It was designed to operate as an emergency contraceptive, but many women have used it at some point, many of them at a young age.
How does Plan B work?
The morning-after pill is a contraceptive that prevents pregnancy a few hours after sexual intercourse. The WHO advises that the sooner it is used, the more effective it will be. It is appropriate to use it as soon as necessary, if possible, within 24 hours after intercourse. However, it remains effective if taken within 5 days after sexual intercourse. This pill prevents or delays ovulation, which can prevent pregnancy. It is important to clarify that it is not an abortive pill; that is, if ovulation has already occurred and fertilization has taken place, the pill does not interrupt the pregnancy.
Effectiveness and Usage
To prevent pregnancy, it uses a higher dose of hormones than daily-use pills. Therefore, it is an option that should only be used occasionally. Even so, the WHO considers that if used correctly, this method can prevent more than 95% of pregnancies. Therefore, it is considered not to be 100% effective. The use of the emergency pill is advised when no other contraceptive method has been used or when it has failed.
Does Plan B affect fertility?
One of the most common questions is: can it affect future pregnancy plans? On the other hand, this pill does not affect fertility. Although the hormone dose is high, it has an immediate effect and does not alter the chances of pregnancy in subsequent cycles. Hormone levels return to normal once its effects wear off. Taking a lot of Plan B does not affect fertility either, but we strongly advise against taking a higher dose than prescribed. Thus, the answer to the question “does Plan B affect a fertilized egg?” is no, because as mentioned before, this dose of hormones only affects ovulation.
Reproduction and Fertility Treatments
For those interested in the causes of infertility or fertility preservation, various advanced techniques and treatments are available, such as:
- Artificial Insemination (AI)
- In Vitro Fertilisation (IVF)
- Vitrification of oocytes
- Egg Donation Program
- Preservation of Fertility
Emergency Contraceptive Summary:
| Feature | Details |
|---|---|
| Active Ingredient | Levonorgestrel 1.5mg |
| Optimal Usage Window | Within 24 hours (Effective up to 5 days) |
| Effectiveness Rate | More than 95% (WHO) |
| Impact on Fertilization | Does not affect a fertilized egg |