Most of the times, various birth control methods are adopted to prevent the chances of pregnancy. For example, birth control pills are around 95 percent to 99 percent effective. However, if one is not careful about proper intake of these pills, there are still possibilities of getting pregnant even while using hormonal contraceptive pills or any other type of birth control method. If one wants to get pregnant on birth control period, she stop taking birth control pills and other birth control patches, if she is using them. If one is, taking birth control medicines due to some medical reasons then consult with a doctor about alternative ways to address the medical conditions. Her fertility should return to normal within a few months after discontinuing the intake of contraceptives.

One should stop the injections of Depo Provera and wait for first normal menstrual period as a symptom that the fertility has returned. This may take three months or longer time. A female should fix an appointment with her doctor for removing IUD, Norplant or any other type of birth control device, which she is using. If one is using implanted hormonal birth control then it may take a few weeks or months to get the normal fertility back. Through this, she can get pregnant on birth control duration.

A female should discuss with her partner just before and during ovulation. Once she has stopped taking birth control, her cycle will resume. A female who has a 28 days cycle, normally ovulate on 14th day. One can use an ovulation predictor kit to know about ovulation, if she is not sure about it. If one cannot conceive pregnancy, it is necessary to have patience, as she may get pregnant sooner or later after stopping birth control. If a woman has not become pregnant within a year, then she can discuss with her doctor about testing her infertility. Normally, using a birth control cannot spoil a long-term fertility.

There are many reasons due to which a woman gets pregnant on birth control as birth control methods are assumed as the safer and secure ways to avoid pregnancy. A female can get easily pregnant due to occurrence of few risks, which may increase while using birth control. The contraceptive pills are designed as one of the most effective method for birth control. These pills are to be taken by a woman on some specific days of a women's cycle. Dosages are prescribed to be taken at the time around ovulation and subsequent avoidance of fertilization following intercourse.

For some of the women, the task of taking pills at a committed time is not less than a challenge, and missing dosage can be associated with a risk of getting pregnant. Pregnancy can occur even if one dose is missed. That is why, it is necessary to maintain a regular timing for taking contraceptive pills, to avoid unwanted pregnancy. Inconsistency can also be occurred while using methods like the cap or condom, which can stop the sperms from entering inside the cervix if used properly.