Issues related to fertility control pills vary from birth control to lapse in maintaining the fertility and thus possible pregnancy. Many women ask whether they can get pregnant on these pills. The answer cannot be elucidated by simplifying it as yes and no. Because there are factors that may still lead to pregnancy even when you are taking pills.
Though it is generally said that birth control pills are 99.7% effective in controlling the fertility. However, in reality it is difficult for some women to maintain the strict schedule of taking these drugs on time and avoiding sex at the same time. Therefore, it is a possibility that one might get pregnancy despite taking fertility control pills. Due to this behaviour research wise there is a possibility of failure up to about 9%.
Medicines can also be affected by other medication taken along them or supplements. Therefore, a woman must be aware of the typical cases where a pill may lose its affectivity and this can still cause pregnancy.
As we have mentioned earlier birth control pills are contraceptive pills that are actually hormones. Normally taken pills are a combination of two hormones estrogen and progesterone. The method of these pills is to prevent the ovulation (maturation and precipitation of female egg) from happening.
These pills are a 21 day set of hormones and 8 to 9 days of pill free period. They have to be taken regularly during 21 days, and the tablets after 21 are to maintain a discipline and habit of taking medicines at proper times.
However, missing tablets might lead a period to probable pregnancy where the birth control pills aren’t effectively preventing ovulation and may cause a period of fertility. Philip Darney M.D. says,’’When you quit using birth control, your ovaries go right back to work.’’
Not Taking Pill on Time:
This is another problem encountered by women who are on fertility control pills. Missing or not taking a pill is once again problematic. This can cause disturbance in the hormones level that ought to control the ovulation and lead to egg formation.
These pills maintain a steady state of hormone and if one misses a hormone and provides a period free of active hormone for more than one day, then the hormone levels drop down well below optimum level to prevent pregnancy.
Some Drugs Can Alter Fertility Drug Levels:
Normally medicines when absorbed in the body pass through the liver. In their passage through the liver they get metabolized and changed in to different forms and pass through excretion. This metabolism works through different enzymes and these enzymes to make up and breakup of. Some other drugs act on these enzymes and may increase to decrease the availability of other drugs. This is called First Pass Metabolism.
For Example Rifadin which is a drug for Tuberculosis, anticonvulsant drugs like Tegretol, phenobarbital and some HIV Protease Inhibitors that speed up the metabolism in liver. In result they can cause an increase in metabolism of fertility control pills and consequently decrease their level in blood.
Other common usage drugs like anti-biotic and anti-fungal treatments generally don’t affect the efficacy of pills.
Misconceptions about Fertility Pills:
Some things are believed to cause the effectiveness of birth control pills but in reality they don’t. For Example:
- It is believed that weight cause an alteration in the working of birth control pills however there aren’t sufficient studies. However, obesity is an exception and it may cause problems in hormone levels.
- Alcohol consumption doesn’t affect this also.
- Taking expired pills might have other problems but not this.
- Grapefruit juice.