LH Surge: Timing, Symptoms, And Ovulation

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Hormonal changes are a significant part of your cycle, and luteinizing hormone (LH) is crucial for ovulation. If you’re trying to get pregnant, your success depends on understanding your LH surge.

The rise in hormone happens a few days before ovulation, but there’s much more to understand. Read on to learn about your LH surge and how it relates to the positive pregnancy test you’re seeking.


What Does An LH Surge Mean?

Women experience a rise in luteinizing hormone (LH) levels that stimulates ovulation. This is called an LH surge, and there are some crucial facts about surges.

  1. They release eggs from follicles located in your ovaries.
  2. They begin converting leftover follicles into corpus luteum.
  3. You’re most fertile during your LH surge. This is when your chances of conceiving are highest.
  4. Your fertile window lasts five to six days, but you’re not at peak fertility on these days. LH surges happen during a small time frame within those five to six days.

Timing intercourse around your LH surges is a major part of getting pregnant.


How Long Does An LH Surge Last?

Your LH surge lasts 24 to 36 hours during your fertile period. It’s important to note that 24 to 36 hours is the medical standard.

Every woman is unique, and LH surges are similar to menstrual cycles. The medical standard for a cycle is 28 days, but this doesn’t apply to many women.

If you want feedback about your unique LH surge, you can track exact levels of luteinizing hormone with Mira. Tracking your hormone levels lets you see patterns. Increase chances of conception by knowing your precise LH patterns.

Having a hard time tracking ovulation? Mira takes the guesswork out by measuring your actual fertility hormone concentrations! Sign up today for exclusive Mira content and discounts!
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How Long Do You Ovulate After An LH Surge?

The standard answer is that you ovulate for 24 hours. During ovulation, an egg is released and is either fertilized or dissolves.

Your fertile window is approximately five or six days, but this fact is somewhat misleading. Sperm can survive up to five days, so it’s possible to get pregnant from intercourse during this time.

The 24 hours of ovulation are part of your fertile window. Your fertility is highest immediately before ovulation during the LH surge. This is why recognizing LH surges is crucial.


How Do You Detect Your LH Surge?

There are several different methods women use to detect LH surges. Natural methods are common, and hormone detection is an option as well. Below are popular methods.


Cervical Mucus Method

With the cervical mucus method, you detect changes in cervical mucus that occur prior to ovulation. Using this method requires you to check your cervical mucus daily. You’ll need to do this daily  for several cycles to recognize patterns.

Factors like infections and intercourse can change cervical mucus, so this method isn’t too reliable. A study by healthcare professionals shows 23 out of 100 women conceive within one year of using the cervical mucus method.


Basal Body Temperature

Basal body temperature (BBT) is your body’s temperature when you’re at rest. A slight increase in temperature occurs after ovulation. Approximately 2-3 days before the temperature increase is when your LH surge happens.

This is another method that requires daily monitoring for several cycles. Lifestyle and health factors easily change BBT, and you may miss LH surges.


Ovulation Calculators And Calendars

Ovulation calculators and calendars are tools that use a formula to estimate your fertile window. Many women use smartphone apps with calendars to help track their cycles.

The formula used is based solely on 28-day menstrual cycles. Unfortunately, this means the formula isn’t reliable due to women’s unique cycles.


Ovulation Predictor Kits

Ovulation tests (commonly known as OPKs) work similarly to pregnancy tests. The tests detect the presence of luteinizing hormone. This is used to indicate high or peak fertility.

Almost all OPKs only indicate LH surges if you produce the minimum amount of LH the test requires. Every woman produces different levels of LH. This means many women receive false negatives, miss positive results, and miss ovulation cycles.

Mira’s ovulation tracker is unlike other ovulation test kits. It detects the exact amount of LH in your system. This makes it easier to see when your surges occur. The results are 99% accurate.


Symptoms Of An LH Surge

When you want to detect LH surge symptoms, you’re looking for signs that ovulation is about to occur. Changes that happen during LH surges may include:

  • Change in vaginal discharge/cervical mucus
  • Very slight pain in your side
  • Breast tenderness
  • Increased libido
  • Light spotting/bleeding (not very common)

Keep an eye out for symptoms and carefully record them each cycle. Don’t be too concerned if you don’t experience these signs. All women have different LH surge symptoms and patterns.


Essential Takeaways

These crucial points are significant ones to remember:

  • An LH surge only lasts 24 to 36 hours.
  • You’re most fertile during a surge.
  • Knowing your unique LH levels is ideal for getting pregnant.
  • Every woman has different timing, symptoms, and cycles.

You’ve learned several facts and details about your LH surges. This information can do wonders when you’re trying to conceive. Track your hormone surges to elevate your chances, too.


Order Your Mira Today

Ready to easily, precisely, and automatically track your ovulation cycles? Let Mira take the guesswork out of getting pregnant, so you know exactly when to conceive.

Reserve Your Mira Today

Ready to easily, precisely, and automatically track your ovulation cycles? Let Mira take the guesswork out of getting pregnant, so you know exactly when to conceive.

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