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» Scarleteen Boards: 2000 - 2014 (Archive) » SCARLETEEN CENTRAL » Safer Sex & Birth Control » The pill, need some clearing up

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Author Topic: The pill, need some clearing up
stardust2584
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Hi everyone! This question is a lil about feeding my personal curiosity about the pill. So, I'm a nursing student and we learned a lot about BC and we even talked about it to students in our school. Now, I know that missing a pill can cause a risk to get pregnant. But why is it though? Since the basics of the pill it to take it for 21 days then stop taking it for 7 days (or placebo pills for the 28 packs), how come it's okay to stop taking it for 7 days, but missing one isn't?
Posts: 14 | From: canada | Registered: Dec 2007  |  IP: Logged | Report this post to a Moderator
Aguyfromoz
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Short answer: OCPs stops the maturation and release of a follicle by suppressing the hormones necessary for ovulation to occur.
If an pill with active ingredients is missed for a day, it would allow a rise in estrogen and progesterone, leading to a rise in FSH and LH. Depending on day of the cycle the pill is missed, the increased hormone levels would either allow a follicle inside the ovary to mature, or let a ovum out into the cervix.
The inert pills allow the thin lining on the uterus (withdrawl bleed) to occur and assuming perfect OCP use so far in the cycle, no ovum is in the cervix and hence no conception is possible.

Watch this flash animation for the long answer.

Posts: 10 | From: Sydney, Australia | Registered: Jan 2010  |  IP: Logged | Report this post to a Moderator
stardust2584
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Ok thank you that helped [Smile]
Posts: 14 | From: canada | Registered: Dec 2007  |  IP: Logged | Report this post to a Moderator
   

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