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Old 01-27-2005, 05:27 PM   #16 (permalink)
StanT
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Location: Colorado
Quote:
Originally Posted by Seaver
Try looking again how birth control PILLS work. They prevent the woman from releasing an egg.
COMBINED ORAL CONTRACEPTIVES

Quote:
The process of ovulation is directed by hormones. Estrogen and progesterone are two hormones which direct many of the processes surrounding the menstrual cycle. Artificial analogues of these have proven an efficient form of birth control. To prevent pregnancy a woman takes a pill daily which contains both of these hormones. This is the combination pill, or simply "the pill."

The estrogen works by preventing an egg from being released from the ovaries most of the time. Both the estrogen and progesterone make the uterus a hostile environment for an embryo by causing a thinning of the uterine lining. As modern combination pills contain less estrogen than their predecessors, an egg will be released by the ovaries 2-10% of the time. If fertilization takes the embryo will be unable to implant in the uterus, resulting in the death of the embryo. Although some consider this risk minimal, the most reliable sources cite the interceptive effect as a major mechanism of action; in fact, large doses of this drug are used as a 'morning after pill' (see the Emergency Contraceptive Pills below).
Your source? Mine says that you are correct 90% of the time. That means that if you and your SO use birth control pills and believe that life starts at conception, you only commit murder once a year.
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