ovulation

Ovulation: 10 Things to Know About Your Menstrual Cycle

Ovulation is a part of your normal menstrual cycle. It occurs when an egg is released from your ovary. When the egg is released, it may or may not be fertilized by sperm. If fertilized, the egg may move to the uterus and implant to form into a pregnancy. If left unfertilized, the egg dies and the uterine lining is shed during your period.

Knowing how ovulation occurs and when it actually takes place can help you get pregnant or prevent pregnancy. It can also help you diagnose certain medical conditions.

1. Where does ovulation fit into your overall menstrual cycle?

Your menstrual cycle resets the day that your menstrual flow begins. This is the start of the follicular phase, where the egg matures and is later released during ovulation, around day 14.

After ovulation comes the luteal phase. If pregnancy occurs during this phase, hormones will keep the lining from shedding with a menstrual period. Otherwise, a flow will start around day 28 of the cycle, beginning the next cycle.

In short: Ovulation generally occurs in the middle of the menstrual cycle.

2. When does it occur?

Ovulation typically happens around day 14 of a 28-day menstrual cycle. However, not everyone has a textbook 28-day cycle, so the exact timing can vary.

Generally, ovulation occurs in the four days before or four days after your cycle’s midpoint.

3. Does it cause any symptoms?

Impending ovulation can cause an uptick in vaginal discharge. This discharge is often clear and stretchy — it may even resemble raw egg whites. After ovulation, your discharge may decrease in volume and appear thicker or cloudier.

Ovulation may also cause:

  • light bleeding or spotting
  • breast tenderness
  • increased sexual drive
  • ovary pain characterized by discomfort or pain on one side of the abdomen, also called mittelschmerz

Not everyone experiences symptoms with ovulation, so these signs are considered secondary in tracking your fertility.

4. Is ovulation the only time you can become pregnant?

No. While the egg can only be fertilized in the 12 to 24 hours after it’s released, sperm can live in the reproductive tract under ideal conditions up to 5 days. So, if you have sex in the days leading up to ovulation or on the day of ovulation itself, you may become pregnant.

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5. How long does it last?

The process of ovulation begins with your body’s release of follicle-stimulating hormone (FSH), typically between days 6 and 14 of your menstrual cycle. This hormone helps the egg inside your ovary to mature in preparation to release the egg later.

Once the egg is mature, your body releases a surge of luteinizing hormone (LH), triggering the egg’s release. Ovulation may happen in the 28 to 36 hours after the LH surge.

6. Can you ovulate more than once in a given cycle?

Yes. Some people may ovulate more than once in a cycle.

One study from 2003 suggested that some may even have the potential to ovulate two or three times in a given menstrual cycle. Not only that, but in an interview with New Scientist, the lead researcher said that 10 percent of the study participants actually produced two eggs in one month.

Other people may release multiple eggs during one ovulation either naturally or as part of reproductive assistance. If both eggs are fertilized, this situation may result in fraternal multiples, like twins.

7. What if you aren’t ovulating regularly?

If you track ovulation from one month to the next, you may notice that you’re either not ovulating regularly or — in some cases — not ovulating at all. This is a reason to speak with a doctor.

Although things like stress or diet may impact the exact day of ovulation from month to month, there are also medical conditions, like polycystic ovary syndrome (PCOS) or amenorrhea, that may make ovulation irregular or stop completely.

These conditions may cause other symptoms related to hormonal imbalances, including excess facial or body hair, acne, and even infertility.

8. What’s the “fertile window”?

The six days leading up to and including ovulation make up what’s called the “fertile window.” Again, this is the period of time when sexual intercourse may lead to pregnancy.

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The sperm may wait around for several days in the fallopian tubes after sex, ready to fertilize the egg once it’s finally released. Once the egg is in the fallopian tubes, it lives for around 24 hours before it can no longer be fertilized, thus ending the fertile window.

9. How often should you have sex if you’re trying to conceive?

You only need to have sex once during your fertile window to achieve pregnancy. Couples who are actively trying to conceive may up their chances by having sex every day or every other day during the fertile window.

The best time to get pregnant is in the two days leading up to ovulation and the day of ovulation itself.

10. Can you track your ovulation?

While the most accurate ways to confirm ovulation is with an ultrasound in the doctor’s office, or with hormonal blood tests, there are many ways to track ovulation at home.

  • Basal body temperature (BBT) charting. This involves taking your temperature with a basal thermometer each morning throughout your cycle to record its changes. Ovulation is confirmed after your temperature has stayed elevated from your baseline for three days.
  • Ovulation predictor kits (OPK). These are generally available over-the-counter (OTC) at your corner drugstore. They detect the presence of LH in your urine. It may happen within the next couple of days after the result line is as dark or darker than the control.
  • Fertility monitors. These are also available OTC. They’re a more expensive option, with some products coming in at around $100. They track two hormones — estrogen and LH — to help identify the six days of your fertile window.

Conclusion

If you’re looking forward to getting pregnant in no distant future, consider making a preconception appointment with a doctor or other healthcare provider.

They can answer any questions you may have about it and tracking, as well as advise you on how to time intercourse to magnify your chances.

Your doctor can also identify any conditions that may be causing irregular ovulation or other unusual symptoms.

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