As long as the pill user is taking their pills correctly (never missing/skipping a pill, taking the pill at about the same time every day, using a back-up method of birth control when they miss pills or when they are taking an antibiotic that lowers the effectiveness of the birth control, etc.) then the chance of this happening is EXTREMELY low.
That said, no method is 100% effective against pregnancy, so there is still a very, very small chance, that even when taken perfectly, a woman could ovulate while on the pill and become pregnant if the egg were fertilized & implanted.
And, obviously, if she is inconsistant in taking her pill/not taking it correctly, she could ovulate/become pregnant because of that.
This is true both of women who have been on the pill just a short while and women who have been on the pill for much longer.
-------------------- Jean aka dailicious Scarleteen Volunteer Love us? Want to keep us in your lives and hearts? Give what you can! Posts: 3382 | From: Denver, Colorado | Registered: Mar 2005
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