Ovulation Test

Raleigh-Durham, NC Ovulation Test Overview

An Ovulation Test at our Durham, NC fertility treatment clinic can include assessments for:

  • Urine Luteinizing Hormone (LH)
  • Progesterone level
  • Basal body temperature (BBT)
  • Insulin resistance
  • Prolactin
  • Dehydroepiandrostenendione sulfate (DHEAS)
  • 17-OH progesterone

Urine Luteinizing Hormone (LH) Fertility Treatment Ovulation Test for Raleigh, Cary, Apex, Chapel Hill, Durham, Fayetteville & Nationwide

The female menstrual cycle is under the hormonal control of the endocrine system, which involves the hypothalamus, pituitary gland, and ovaries.

When the endocrine system is functioning properly, the hormones released by the ovary will eventually trigger a marked release of leutenizing hormone (LH). This is known as the “LH surge.” The rise in LH will stimulate the rupture of the ovarian follicle and the release of oocyte into the abdominal cavity.

LH tests are used in the process of a fertility treatment to help evaluate ovarian function by testing for the LH surge. Urinary LH kits test for a form of LH that has an extended life span due to transformation in the urine. These kits are marketed for home testing for the rise in LH prior to ovulation.

With adequate monitoring in the setting of our fertility treatment clinic in Durham, NC, you will not need to do urinary LH testing unless specifically directed by a physician.

Progesterone Level Fertility Treatment Ovulation Test in Durham, NC

Progesterone is produced in the ovary after ovulation and is instrumental in supporting the lining of the uterus and the early embryo.

A progesterone level drawn on day 21 or approximately seven days after the date of suspected ovulation can be an indicator of ovulatory function and used to evaluate strategies relating to fertility treatment.. A level greater than eight usually indicates that ovulation has occurred and that adequate progesterone is being made to support an early pregnancy.

In patients suspected of having inadequate progesterone secretion after ovulation (known as a luteal phase defect), a supplemental progesterone fertility treatment may be administered. There are several forms of progesterone available, including vaginal suppositories and injectable progesterone. All are equally as effective as a potential fertility treatment.

Basal Body Temperature (BBT)

Basal body temperature (BBT) measurement is a nonintrusive way to predict ovulation. Since a woman’s temperature is generally lower before ovulation and higher afterward, the method charts fertility through daily temperature measurements.

Most women have a BBT between 97 and 97.5 degrees Fahrenheit before ovulation and between 97.6 and 98.6 degrees afterward. By keeping a daily record of her temperature, a woman may detect a dip right before ovulation, representing her most fertile time.

Insulin Resistance Screening

Resistance to the effects of insulin produces an increase in insulin production and circulating levels (known as hyperinsulinemia). Too much insulin can lead to skin disorders and elevated androgens (known as hyperandogenism).

For information about testing for insulin resistance, see Endocrine Insulin Resistance Screening.


Prolactin is a hormone of the endocrine system that is released from the pituitary gland. The pituitary is located at the floor of the brain just above the mouth and nasal passages.

Prolactin is responsible for the production of milk. Prolactin levels can be elevated without causing galactorrhea (discharge of milk in a non-pregnant woman).

Prolactin can interfere with the normal function of the hormones that govern follicular development and the menstrual cycle. Prolactin tumors may also cause the pituitary to stop producing other hormones, namely FSH and LH, which will also have an impact on normal reproductive function.

Dehydroepiandrostenendione Sulfate (DHEAS)

DHEAS is a hormone produced by the adrenal cortex. In women, elevated hormones like DHEAS and testosterone can lead to male pattern hair growth and acne.

The hormones cause an increase in free estrogen (by reducing sex hormone binding globulin which binds both estrogens and androgens), resulting in a decrease in follicle stimulating hormone (FSH). Because of decreased FSH, the follicles are initially stimulated to grow but do not have enough FSH to continue growth. This results in the polycystic appearance of the ovaries. Because follicles are not developing normally, women will not ovulate normally and will not have normal menses.

17-OH Progesterone

A blood test is used to measure 17-OH progesterone and identify possible disorders in the adrenal gland.

Deficiencies may increase hormone levels, leading to masculine characteristics and interfering with ovulation.

Helping patients from Raleigh, Durham, Apex, Cary, Chapel Hill, Fayetteville, South Boston, VA, Danville, VA and nationwide realize their dream of having a family.