What is the probability of getting pregnant when taking birth control pills? How long is it normal to delay menstruation after taking contraceptive pills

At present, commonly used contraceptive pills include short-term contraceptives, long-term contraceptives, and emergency contraceptives. Their main ingredients are a combination of estrogen and progesterone, or low-dose or strong progesterone. Their contraceptive principle is because they can inhibit ovulation, change the quality of cervical mucus, hinder sperm penetration, hinder fertilization, or inhibit endometrial proliferation, which is not conducive to fertilized egg implantation.

But it should be noted that the success rate of any contraceptive measure is not 100%. Among them, failure to take medication according to regulations: such as missing short acting contraceptives or having unprotected sexual intercourse again after taking emergency contraceptives, which is the main reason for the failure of oral contraception; Secondly, improper storage of contraceptive pills, drug failure, gastrointestinal absorption disorders, or interference from some medications taken simultaneously are also reasons for contraceptive failure.

Contraceptive pills are not everything., Even with a 99% success rate, one must be mentally prepared for the possibility of failure at that 1%.

Five weeks after pregnancy, the embryonic gonads begin to develop. If contraceptive pills, estrogen, and progesterone are used at this time, it can have adverse effects on the development of the fetal sexual organs.

Not only that, contraceptive pills can also cause fetal limb deformities, visceral deformities, or spinal, anal, and external genital malformations. If it is an oral contraceptive pill, it will also increase the rate of chromosome aberration, especially the rate of chromosome breakage, which will significantly increase. Therefore, women taking oral contraceptives should stop taking them six months before planning to conceive.

Due to different types, the efficacy and harm of birth control pills may also vary. Generally speaking, regular birth control pills do not affect fertility. Due to the fact that the main function of contraceptive pills is to inhibit ovarian ovulation, the medication used during the menstrual cycle can only be used for one month. Therefore, after discontinuing the medication, the ovaries will quickly restore ovulation function.

According to a large amount of statistical data, women who have been taking medication for 6 months have their ovaries returning to ovulation in the first menstrual cycle after discontinuing medication; Those who have been taking medication continuously for more than one year;, Resumption of ovulation after 1-2 months of discontinuation of medication; Most women who continue to take medication for a long time resume ovulation within one month after discontinuing the medication, while 98% of women resume ovulation within three months. Ovulation may lead to pregnancy, so taking regular birth control pills generally does not affect fertility.