How effective are birth control pills against pregnancy if you take them on time every day?

Contraception. Birth control pills have been around since 1960. They are highly effective if taken every day as directed, approaching 99 % . Taking antibiotics may however diminish the effectiveness of the pill, so a back-up method such as condoms is advised, if being treated for an infection.

Related Questions

Am I at high risk for pregnancy if I don't take my birth control pills at a certain time each day?

NO. As long as you take it daily but it is better after a heavy meal to avoid stomach irritation and not after breakfast , the bcp might make you fat. Read more...

If she takes birth control pills then are the sugar pills as effective at preventing pregnancy as a placebo effect?

No. The "sugar" pills are there to maintain a regular dosing schedule. Once the 3 weeks of active pills are finished, the hormonal trigger for menstruation occurs, & a period will follow. The "placebo" pills have nothing to do with the period other than to keep the schedule on routine. But one can't get pregnant during the period, so pregnancy is still prevented even though the pills are not active. Read more...

I had surgery on my beast 02/25/13 for the 3rd time less then a year. I sometimes take my necon birth control pills. What are some pregnancy signs.

Some small changes. A woman of childbearing age who has some nausea (with or without vomiting), some fatigue (feels less energetic), a sharper/stronger sense of smell, mild soreness/swelling of her breasts, and maybe some food aversions and cravings . . . Could be pregnant. Symptoms can occur before missing a period. She can do a urine pregnancy test 1 week after missing her period, or if she is worried about it. Read more...