There's always been misconceptions surrounding birth control pills. Here's few common fallacies:

1) Birth control pills work immediately.

Birth control pills must be taken exactly as directed. Usually this is for at least 20 days. Birth control pills work by suppressing ovulation. They do so by using the synthetic hormones progesterone and estrogen. Only a small dose of these hormones are in each pill and taken in a small, irregular dose, does nothing to interrupt a woman's natural menstruation.

2) Birth control pills will prevent pregnancy if used immediately after intercourse.

Because birth control pills need time to suppress the hormones that cause ovulation, taking birth control pills immediately after intercourse will have no effect.

These hormones inhibit the secretion of a follicle stimulating hormone and the luteinizing hormone. When the birth control pill is not taken regularly this action fails to stop ovulation.

3) A woman can't conceive if she doesn't have an orgasm.

A woman can get pregnant regardless of whether she has an orgasm.

4) A woman can't get pregnant on her period.

Sperm can live for up to 5 days inside a woman's body. Which is long enough to fertilize and egg long after menstruation ends.