What Is the Normal Estrogen Level at Ovulation?

Estrogen level is high just prior to ovulation.

Ovulation occurs when a mature egg is released from the ovary and becomes available to be fertilized. Estrogen plays a big part in the woman's menstrual cycle and its level varies during different parts of the menstrual cycle, including ovulation.

Measurement

The level of estrogen is measured in parts of pg/ml o f estradiol.

Types of Estrogen

According to Antiaging Guide, estrogen can exist in three forms: estrone, estradiol and estriol. Estradiol is the most potent and is converted to the weaker estrone and then to estriol when the levels of progesterone rises.

Estrogen Peak

Estrogen level peaks just prior to ovulation. The increased level of estrogen causes the release of leutenizing hormone to trigger the release of the egg.

Normal Estrogen Level

Normal estradiol range for normal reproductive age women is from 5 to 400 pg/ml.

Low Estrogen Level

According to Mayo clinic, low levels of estrogen can result in ovarian disorder, which prevent the ovary from releasing eggs.

References

• Antiaging Guide: Ranges of Normal Estrogen Levels
• American Pregnancy Association: Understanding Ovulation
• Mayo clinic: Infertility