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Hormones and Conception

One of the most important relationships, when we’re talking about fertility, is the relationship between hormones and conception. There is an inextricable link between hormones and conception. Hormones play a significant part in the conception process, and if your body isn’t producing the right type of hormones in the right amount at the right time, you’re going to face some problems with fertility. In the same regard, there are specific hormonal changes that will take place in a woman’s body from the date of conception going forward.

There are several different hormones related to conception. The first one worth considering is FSH. FSH, or “Follicle Stimulating Hormone,” helps the ovaries to produce and to release mature eggs. Each egg is a part of a follicle. Follicles, in turn, are responsible for the productin of estrogen.

Estrogen is a hormone that has many purposes in a woman’s body. One thing that estrogen does is to help your cervical mucus do its job in moving sperm from the vaginal environment to the fallopian tubes. Estrogen also prompts the release of LH or “luteinizing hormone.”

LH works to help the egg, inside the follicle, to come out into the place where it can be fertilized. The remainder of the follicle becomes a “corpeus luteum.” The shedding of the corpeus luteum helps to spur the production of progesterone.

Progesterone works with the uterus to help maintain the lining of the uterine wall. This makes it more likely that a fertilized egg will implant. Progesterone also causes your Basal Body Temperature to increase. For this reason, many women track their BBT in order to figure out when ovulation has occurred.

After an egg becomes fertilized and implants, your hormones change. About seven to 10 days after conception, your body starts to product hCG or “human Chorionic Gonadotrophin.” This hormone is the one that can be measured with a home pregnancy test. Your hCG levels will change rapidly, and will hit their peak at around the third month of pregnancy.

As you can tell, the link between hormones and conception is very important, with each hormone and each step of your ovulatory cycle leading into the next.


Last modified: February 10, 2013


The information provided here should not be considered medical advice. It is based on the average experience of women trying to conceive and may not be what you may be experiencing. It's not meant to be a replacement for any advice you may receive from your doctor. If you have any concerns about your cycle or our ability to get pregnant, we advise you to contact your doctor.