Emergency contraceptives are an emergency contraceptive method that can be used in emergency situations after unprotected or avoiding contraceptive measures.
However, for many people, there are still some questions about whether there will be pregnancy after taking emergency contraceptives.
This article will answer this question and introduce the working principles and precautions of emergency contraceptives.
1. The working principle of emergency contraceptive pills
There are two main types of emergency contraceptives: oral emergency contraceptives and emergency contraceptives.
Oral emergency contraceptives usually contain progesterone or progesterone. These drugs can delay or prevent ovulation, thereby reducing the chance of pregnancy.
Emergency contraceptive breeding device is a T -shaped device that is placed in the uterus. By changing the environment and viscosity of the endometrium to prevent the fertilized egg from bed.
2. The effectiveness of emergency contraceptives
Urgent contraceptives can significantly reduce the risk of pregnancy under the correct use, but it is not 100 % effective.
According to research, the risk of pregnancy can be reduced to less than 75%when oral emergency contraceptives are used within 72 hours after the occurrence of unprotected behavior.
The earlier the use, the better the efficacy.
The effectiveness of emergency contraceptives is also high. It can be used within 120 hours after unprotected behavior, and its pregnancy risk is reduced to less than 2%.
Third, it may lead to the failure of emergency contraceptives
Although emergency contraceptives can largely reduce the risk of pregnancy, there are still some cases that may cause drugs to fail.
These situations include: pregnancy, allergic reactions, or unable to tolerate drug ingredients, errors of drugs, and drug interaction.
In addition, if ovulation or fertilized eggs have occurred, emergency contraceptives will not be able to stop pregnancy.
Therefore, after using emergency contraceptives, there is still a certain chance of pregnancy.
4. Precautions for the use of emergency contraceptives
When using emergency contraceptives, several precautions need to be kept in mind.
First, try to use drugs within 72 hours (oral emergency contraceptives) or within 120 hours (emergency contraceptives) within 72 hours after the occurrence of non -protected behavior. The earlier the use, the better.
Secondly, use drugs in strict accordance with the usage and dosage in the instructions.
In addition, if persistent vomiting or diarrhea occurs after taking the medicine, it may affect the efficacy. You need to consult a doctor and re -evaluate whether the emergency contraceptive is required for reuse.
Emergency contraceptives are an emergency contraceptive method that can be used in emergencies after the failure or avoiding contraceptive measures.
Although emergency contraceptives can significantly reduce the risk of pregnancy under the correct use, it is not 100 % effective, and it may fail in some cases.
Therefore, when using emergency contraceptives, it is necessary to follow the correct usage and dosage, and observe the physical response closely after use.
If you have any questions or discomfort, it is recommended to consult a doctor in time.
The most important thing is that in order to avoid accidental pregnancy, it is recommended to adopt long -lasting and reliable conventional contraception methods in sexual behavior, and discuss with doctors to choose the most suitable for contraceptive measures.