How long does it take for birth control pills to take effect?

How long do you have to wait until the pills start workin'?How long does it take for birth control pills to take effect?
depends on which pill you take... it could be anywhere from 4-7 weeks.





my doctor always tells me to use a back up method of birth control for the first two months any time you start taking birth control pills or switch brands (ie: going from Ortho Tricyclen to Yaz, and so on).How long does it take for birth control pills to take effect?
about a month of daily use. dont let some one tell you ';o' only a couple days'; cus they are dead wrong! thats a sure fire way to get preg.
Like about a week.
4-5 weeks.... I would use back-up birth control for about 4 weeks....... just to make sure!
It depends on what you're taking, so you need to read the insert that comes with each pack of pills.





As a general rule, they say you aren't protected completely until you've finished your first pack of pills.





But my current brand, according to the packaging, protects after the first week if taken perfectly and on the correct starting day.
1 month, the dr should have told you that when you got your pills, you need to use a second method for 1 month
I believe it is 16 days from the sunday you start taking them, and please wait the full 16 days!
one month
one month