Nowadays, the birth control pills are a very popular and crucial choice for a large majority of worldwide women. The compound from the revolutionary birth control pills is an estrogen and progestin mixture, extremely efficient in comparison with the simple pills, which are composed only from progestin.

In general, if the pills are taken regularly, without missing or taking any too late, the pregnancy rate is 0.1%, 1 per 1000 women. In practice, the studies have revealed that the pregnancy rate is higher, ranging from 3% to 5%. If you are taking birth control pills, is more likely to wonder yourself what real chances are to become pregnant while taking the medication.

According to the medical experts, the large majority of pregnancy situations occur when a woman takes oral contraceptives and accidently misses to take one or several pills, or in the case the pills expiration dated well passed. The pill is not fool proof, and women who take it religiously, although very rare, can still get pregnant-more so for those who take it irregularly.

Another two extremely common situations, which are highlighted the high risk of getting pregnant on pills are: not to begin a new pack on the correct day or to take the pills too late from the sequential and predefined hour. Many women are afraid that getting pregnant soon after the pill will cause birth defects, but there have been no conclusive studies on the correlation between hormone exposure and birth defects. There is an increased risk of miscarriage though, so women should be careful when they suspect that they’re pregnant while on the pill.

There are a great variety of reasons why women may not take their oral contraceptives in time or entirely skip them, such motivations are: disruption of the daily routine, the husbands absence and simply the trouble of remembering to take them each day at a certain time. The medical professionals revealed that almost 47% of women are missing at least one pill per cycle and more than 22% are missing more than 2 pills per cycle, highlighted the increasing rate of missing the pills.

The core mechanism which sustained the pregnancy prevention is, basically the ovulation prevention. The birth control pills suppress the luteinizing hormone and the follicle-stimulating hormone. This overcomes the luteinizing hormone surge from appearing and this surge is mainly responsible for the ovulation process.

A basic and crucial characteristic of the oral contraceptives is to alter the cervical muscles, minimizing the sperm penetration risk. The pills are also changing the lining of the uterus, diminishing the implantation stage. There are a wide range of defense lines to prevent pregnancy, even if the ovulation occurs while taking pills. In essence, missing one pill dose will not be followed by serious and undesirable situations, although it is recommended to double the immediate dose, in order stay on schedule and to diminish any breakthrough bleeding. In the case of skipping several doses, it is desirable to utilize a barrier technique, which will end of the cycle at the menstruation appearance. Even without any type of bleeding, the pregnancy possibility must be taken in consideration.

Taking an ensemble view, the changes of a women getting pregnant while on the birth control pills is extremely low, highlighted the great efficiency of oral contraceptives. In the process of preventing a pregnancy, the pill is considered the most comfortable and the number one method, followed by the surgical sterilization.

Author Bio: Rebecca Anison is a mother of two kids, before that she had infertility problems. Please visit her website to learn more about how to get pregnant fast and cure infertility problems naturally like her. © Copyright 2010- Rebecca Anison. All Rights Reserved Worldwide.