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corpus luteum

Progesterone Levels During Pregnancy

Progesterone levels in the blood come from the corpus luteum and are helpful after ovulation and to find out if you ovulated or not. Low progesterone levels are not normal.

Pregnenolone Production in the Early Trophoblast

A new study published in the Journal of Assisted Reproduction and
links the early placenta to pregnenolone production. Research
was completed by authors from the New York University School of

Why Does a Pregnant Miscarriage Occur?

The American College of Obstetricians and Gynecologists estimate up to 25% of pregnancies will end in pregnant miscarriage, but why does pregnant miscarriage occur?

Why Does Implantation Bleeding Happen?

If a fertilized egg implants in the uterus, implantation bleeding may show up, but why does implantation bleeding happen?

Facts About Pregnancy

Pregnancy is a time in life when women feel closer to their spouse and body more than ever before. Here are a few facts about pregnancy for expecting moms.

When to Test for Pregnancy With the Best Results

Despite the claim that home pregnancy tests are effective as little as two to three days before the first day of your next menstrual cycle, the female body does not always live up to this expectation.

6 Stages in Pregnancy: The Changing Female Body

Stages in pregnancy are often divided up into weeks or trimesters. Within these common stages in pregnancy are six major times of change. These stages of pregnancy occur at one week, four weeks, eight weeks, 12 weeks, 24 weeks and 40 weeks.

What Happens in the First Trimester of Pregnancy?

The first trimester of pregnancy is one of the most exciting times during pregnancy. Understanding what happens in the body during the first trimester of pregnancy is important as some changes may not feel the way a pregnant woman expected.

Top 5 Questions About Pregnancy Tests

Home pregnancy tests changed the face of fertility by allowing couples to use a pregnancy test at home without the aid of a doctor. Before jumping into a home pregnancy test or other form of pregnancy test, it is best to understand how they work and the best way to use them.

What Happens After Ovulation?

The first half of the fertility cycle is when the follicle stimulating hormone stimulates maturation of an egg. As the egg is maturing, estrogen levels rise causing the luteinizing hormone to increase. The luteinizing hormone forces the egg out of the follicle where maturation occurs.

Progesterone Suppositories and Supplementation

There is no clear agreement among doctors whether giving progesterone early in pregnancy will improve pregnancy outcome.

Roll of Progesterone in Fertility, Pregnancy and Corpus Luteum

Progesterone is a steroid hormone initially secreted by the corpus luteum, an area in the ovary which develops after ovulation.

Cervix Soft and High After Ovulation

Am I still fertile if my cervix is soft and high after ovulation?

Tender Breasts and Pregnancy

Could tender breasts mean that I am pregnant?

Can Ovulation Occur at Any Time During the Cycle?

Can ovulation occur at any time during the cycle?


What is the function of progesterone?

Biphasic Curve

The basal body temperature rises and stays up after ovulation because of
the progesterone hormone being produced by the corpus luteum after
ovulation. This hormone increases BBT. A typical biphasic curve has two
distinct phases.

FertilChart BBT Interpretation

The FertilChart guidelines to interpret your charts.

BBT - How To Do A Basal Body Temperature Chart

Learn how to chart your basal body temperature (BBT)

Clomiphene Despite Normal Ovulation

Why would Clomiphene help if I ovulate regularly?

Luteal Phase Defect (LPD) - Treatment

How do you treat LPD?

BBT up 18 Days negative Pregnancy test

My BBT is up for 18 days but my pregnancy test was negative today

When Is The First Day of The Menstrual Cycle?

The first day of the menstrual cycle is also the first day of your menstrual period and that is the very first day you observe bright red blood. Brown spotting is not considered a menstrual period.

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