1/333 women annually. For women taking birth control pills (ocp's) properly and consistently, the chance of pregnancy is reported to be 0.3% per year, or 1 pregnancy in 333 women each year. The actual pregnancy rate in the "real world" is reported to be at least 3% on ocp's, or 1 pregnancy in 33 women each year.
Pregnancy on pill. The birth control pills are about 99% effective when taken properly and not interfered with by certain conditions e.g. Taking certain antibiotics, or anti-fungal agents or if the pill is missed or vomited up within an hour of taking it etc. About 8 out of 100 couples per year will have a pregnancy while taking birth control pills as directed.
Chances of getting pregnant when taking birth control pill at same time daily and using pull out method every time?
Very, very little. Wouldn't worry. In real life, a woman properly taking birth control pills has a very low chance of pregnancy. Combine that with the "pull-out" method, and she will have very, very little chance of pregnancy. Life can be surprising sometimes, so in the rarest of occasions a woman in such a situation might become pregnant... but that's life. Read more...