How Long After Estrogen Surge Is LH Surge (And Why)?

Exact Answer: One Day

Luteinizing Hormone, also abbreviated as LH, is responsible for triggering egg development in females only after a specific LH rise. In other words, LH is a type of hormone that is produced by gonadotropic cells. LH is located near the brain and is made by the pituitary gland.

LH is responsible for developing sexual development and functioning, and it helps control the menstrual cycle for females. LH is also responsible for triggering ovulation or egg from the ovary. However, ovulation will likely occur after a day and a half after LH surge. Therefore, this is a crucial hormone for the female body.

How Long After Estrogen Surge Is LH Surge


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How Long After Estrogen Surge Is LH Surge?

Ovulation is the process, or it is the stage when you are in your most productive period. This is the time when you should have unprotected sex and become pregnant. Unfortunately, most females fail to understand when is the right time to have sexual intercourse and get the body ready for being pregnant. There are several changes that a female’s body goes through throughout their whole life. Some of these changes are important for females to become pregnant. Similarly, estrogens are produced in the ovaries of a female, but estrogens can also be produced by other organs like the liver, heart, brain, and skin.

When an egg is released from the females’ ovary into the fallopian tube or tunnel, the body starts releasing multiple types of hormones. This process happens in females twelve to fourteen days before the start of each period. If there are certain conditions that the female is suffering from, then ovulating could be disrupted. When the estrogens level reaches the upper entrance, then the egg inside is ready for its release. During this time, your brain would likely produce luteinizing hormone or LH, responsible for triggering ovulation.

EventsInformation Regarding The Events
Time After Estrogen Surge For LH SurgeOne day
Time After LH Surge For Release Of EggTwo to three days

After the estrogen surge in the body, there is also a surge in the LH levels. However, this surge takes place after one day. Two to three days after the LH surge, the body releases the egg in the fallopian tube, and the egg is ready to mate with the sperm.

Why Does It Take That Long After Estrogen Surge For LH Surge?

Estrogens are responsible for maintaining the reproductive system in females, such as their breasts and pubic hair. There could be problems arising if your estrogen levels are way too high because there could be a chance of thyroid dysfunction. On the other hand, if the estrogen levels are low, it can interfere directly with your reproduction system and hamper sexual development and other sexual functions. As a result, there will be a risk of obesity and other cardiovascular diseases.

Females can identify or detect their LH surge as detectors are available online or in most pharmacy stores. Various types of kits are available. They function pretty similarly to pregnancy tests and are pretty simple to use because the measurement takes place by checking your urine hormone levels. Ensure you check the instructions written on the kit package because the indications of positive signs or negative signs could be different.

It takes that after estrogen surge for LH surge because two hormones can’t rise simultaneously, and the body needs time for the same. Estrogen levels can also be delayed, which means there could be a chance of delaying ovulation, resulting in adverse effects. If the egg is not fertilized by the sperm inside and implanted in the uterine lining, then the corpora lutea begins to debase.


Overall, it can be concluded that the whole process of pregnancy is natural, and it has to be safe so that females can have the chance to become pregnant. Pregnancy is a natural process, and the journey of nine months is one of the best things that females want.  Your diet should be healthy, and you should visit a doctor at least once or twice a week for a regular check-up.

On average, LH surge occurs after one day of Estrogen surge. However, there could be severe health-related issues arising in case your hormone levels do not rise. Therefore, please make an appointment with the doctor as soon as possible to solve the problem immediately before it is too late.



Last Updated : 23 February, 2024

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24 thoughts on “How Long After Estrogen Surge Is LH Surge (And Why)?”

  1. I did not find any interesting information in this article. It is very basic and common knowledge.

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