Best time to get pregnant lh surge

Clearblue offers a range of ovulation test and fertility products, all of which monitor luteinizing hormone (LH) in urine to identify the time of peak fertility. In the days leading up to the LH surge, estradiol levels rise gradually, reaching a threshold that triggers the preovulatory LH surge. Furthermore, estradiol stimulates secretion of cervical mucus that is favorable for the survival and transport of sperm. The Clearblue Digital Ovulation Test is over 99% accurate in detecting the presence of LH in the urine sample.14 The Clearblue Digital Ovulation Test identifies the two most fertile days by detecting this pre-ovulatory LH surge. The Clearblue Ovulation Test is a traditional ovulation test which is an accurate method to identify the LH surge day and improve a woman's chances of conceiving.

The Clearblue Fertility Monitor and Clearblue Advanced Digital Ovulation Test also measure another key hormone, estrogen (estrone-3-glucuronide) to identify the period of high fertility that occurs prior to the LH surge.
The median is 1.5 days, but sperm can survive up to 5 days in the sperm supportive mucus found in the fertile days of the cycle. The rise in plasma estradiol corresponds closely to the appearance of sperm-supportive cervical mucus.10 Therefore, intercourse during the 6-day fertile period may lead to conception, as sperm can survive for a number of days. Clearblue Digital Ovulation Test has been shown to be 99% accurate when compared to a reference method in laboratory studies using urine samples from 123 cycles in which the LH surge was identified by a reference method.
Monitoring these two hormones helps women identify the fertile days of their cycle enabling them to time intercourse to the days when conception is most likely.

Sperm survival is therefore dependent on the type and quantity of the mucus within the cervix, and the quality of the sperm itself.

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