Best Answer

The combination pill works in several ways to prevent pregnancy, the most important of which is preventing ovulation. Occasionally, though, ovulation may still occur, so the pill also thickens your cervical mucus to keep sperm from entering your womb, and thinning the womb lining so the fertilized egg can't implant.

If you are on a combination (estrogen and progesterone) pill, it works by preventing ovulation (no egg, no fertilization, no baby) If you are on a progesterone only pill you still ovulate but other changes in your body prevent sperm from getting to the egg. In either case you still have a period because your body continues to produce and shed the lining that would nurture the fertilized egg if it were present.

If you are not on the pill, each month your brain tells your ovary to release an egg. After it has been released, the hormone levels in your body go up, which make the brain stop "telling" the ovary to release an egg (otherwise you'd just keep ovulating)

When you are on the pill, the hormones in it make your brain think you have already ovulated. So your brain doesnt tell your ovaries to release an egg.

However, occasionally, a woman might have a 'Breakthrough" ovulation while on the pill. This is why the pill also works by changing the cervical mucus--to make it hard for sperm to get throuh, in case you have a breakthrough ovulation.

Hope that helps! :)

The previous is not accurate. The reason ovulation occurs is by a 20 fold increase in estrogen. This causes a positive feedback, causing the pituitary (brain) to release LH which causes ovulation.

Here is the basic principle. First the ovary begins to develop a primary oocyte, (FSH does this). As this occurs (days 1-13 of the menstrual cycle) these cells divide more and more forming a mass of cells called granulosa cells. ALL of these cells release estrogen. as more cells divide estrogen levels go up.

Once a 20 fold increase in estrogen occurs the Pitutary (brain) releases LH. This causes ovulation. As the oocyte brakes through the ovary it enters the uterine tube. The granulosa cells (secreate estrogen) CHANGE into the coupus luteum. Now these cells start making and secreating Progesterone. Progesterone causes the endometrium (site of implantation) to add more blood vessles and glucose (actualy called glycocalx). This will provide the egg food (glucose) and nutirents/oxogen (blood vessels).

Current research suggest that PMS is caused by this rapid change in hormomes, after ovulation. (Drop in estrogen, increase then drop in progesterone)

Finally, the "tricking your body that you are pregnant" when on Birth Control. If you were pregnant your body would maintian a low to medium level of estrogen because the fertilized egg would be secreating estorgen and hCG (human chorionic gonadotrophen). This keeps the courpus leuteum working, AND prevents the ovary from making another fallicle to fertilize (supresses FSH or Falicle stimuating hormone). When you are on the pill. You maintain this low level of estrogen (sometimes with progesterone) and your body never reaches the 20 fold increase in estrogen that will cause ovulation.

Bottome line: No egg is matured and developed (supress FSH), No ovulation (No LH), and no chance of a baby. The progesterone only birth control is correct above. As it preps the endometrium for implantation it increases the thickness of the mucus. Normally, 200-300 million sperm (spermatazoa) enter the vagina, and only 300-500 reach the site of ovulation, and only 1 breaks into the egg to fertilize it. SO the odds are already bad. Make the mucus extreamly thicker, and none of the sperm will make it up to the site of fertilization.

User Avatar

Wiki User

โˆ™ 2015-07-14 15:53:47
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: Do birth control pills regulate your ovulation?
Write your answer...
Still have questions?
magnify glass
Related questions

Why do birth-control pills contain hormones?

Hormones control the release of eggs, and Birth Control pills either regulate or prevent that release.

Why do birth control pills contains hormones?

Hormones control the release of eggs, and Birth Control pills either regulate or prevent that release.

Why do birth-control pills contain estrogen?

Birth control pills contain Progesterone. They do not contain estrogen.

The type of contraception that works because ovulation is prevented is?

birth control pills

Will it change ovulation if you skip sugar pills and continue birth control pills?

You don't normally ovulate when you're on the birth control pill. That won't change by skipping the sugar pills.

Do you still have a period if you are on birth control?

Yes. There are now birth control pills that regulate a period to one every three months.

Can you use birth control pills and the rhythm method at the same time?

The birth control pill is meant to prevent ovulation. If ovulation occurs, the timing will be unpredictable, making the rhythm method useless.

Does taking two pills at once three times a day help you ovulate when your period is delayed?

No, taking birth control pills is designed to prevent ovulation, not induce ovulation.

How can birth control pills regulate menstrual cycles?

The birthcontrol pills will introduce more estrogen into your system that will help regulate your period. This is a very common thing for doctors to do to help regulate the period.

Could changing birth control pills cause a pregnancy during the first day of ovulation?

It could but if you have symptoms these could be caused by the birth control pills not suiting your body. Talk to your doctor

How long do you have to take birth control pills to regulate periods after depo?

Taking birth control pills after depo will give you a "show" of monthly bleeding, but they do not "regulate" your periods or hormones in any way. You should take birth control pills after depo if you're trying to avoid pregnancy. If you want to get pregnant, there is no medical reason to take the pill.

Is it possible to get pregnant during ovulation if using birth control pills?

You will not ovulate if you take BCPs as directed.

People also asked