How do birth control pills work? How do you not get pregnant when you ovulate an!


Question: Ok, I'm on birth control strictly for period regulation not pregnancy prevention (I'm 28). But, something confuses me about how birth control prevents pregnancy.....I know they work to prevent ovulation, but if you don't ovulate, how do you still get a period? Pregnancy occurs when the sperm fertilizes an egg that has been released from the ovary and you get a period when the egg isn't ferilized. Got that! Known that for many, many years now!! But, I don't understand how you get a period if you don't ovulate. Can anyone explain how birth control pills work? It's just something I've been curious about since beginning the pill a month ago.


Answers: Ok, I'm on birth control strictly for period regulation not pregnancy prevention (I'm 28). But, something confuses me about how birth control prevents pregnancy.....I know they work to prevent ovulation, but if you don't ovulate, how do you still get a period? Pregnancy occurs when the sperm fertilizes an egg that has been released from the ovary and you get a period when the egg isn't ferilized. Got that! Known that for many, many years now!! But, I don't understand how you get a period if you don't ovulate. Can anyone explain how birth control pills work? It's just something I've been curious about since beginning the pill a month ago.

The birth control pill supresses ovulation, through hormonal trickery to fool the body into thinking you are already pregnant. No ovulation, no ova released, not possible to get pregnant. You don't have a true period, what you have is called a withdrawl bleed. After you have taken the last tablet in the pack, the hormone level falls. You body assumes the pregnancy is over, and triggers the shed of the lining. Then in a week, you start the new pack, and again- your body reacts as if you were pregnant. The levels of hormone present in the pill override those produced by your own body, and as long as it does that, you don't ovulate at all. Once you come off the pill completely, the body has to start coordinating everything again- just as it would after a normal pregnancy- and it will take a few months for everything to function as it ordinarily should.

the pills trick your body into thinking it's pregnant, some thicken the mucus so sperm can't get to the egg, but all thin the uterus lining so an egg can't attach and they stop you from releasing an egg.
When you take the placebo pills for your period your body goes "I'm not pregnant anymore" so you get a period.

I hope this helps, I've been on alesse for 5 years now and that's my best understanding of it.

it keeps the egg from being fertilized.

You get a period because there are 7 sugar pills in your pack & and 3 weeks of birthcontrol pills. When you have your period it is on the sugar pills and your body is flushing out the peridium from your body. It has to do this in order to cleanse your body of unused tissue. That is why you can't get pregnant while having sex on your period.

You ovulate when you 'quit' taking the birth control. The seven days that you get your period is when you are taking sugar pills. It prevents you from ovulating all the other days, but you do eventually.

You don't usually ovulate on the pill.
RN

On birth control pills, you don't have an actual period like you do when you ovulate, it just looks like one. What you have is called withdrawal bleeding, caused by withdrawal of the hormones. In addition to regulating your period, the pills can make it shorter and less painful.

The period you get while on the pill is not a true period, it is withdrawl bleeding. Progesterone is a hormone released in high quantities when you are pregnant. It thickens the uterine lining and inhibits ovulation, this why they use it in the birth control pill. When you are on the week off the active pills the level of progesterone in your body drops, making your body think you have hade a miscarriage. Because of this you shed the uterine lining.





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