Home > Boosting Fertility > Progesterone and Fertility

Progesterone and Fertility

Fertility & Progesterone

Progesterone is recognized as a vital female hormone central to successful conception and a healthy pregnancy. The word "progesterone" is itself etymologically related to the Latin root gestare - meaning to bear or carry - suggesting the importance of this hormone in creating a fertile environment for conception and the continuing development of the embryo. (Many women report that FertilAid for Women has helped normalize their progesterone levels.)

In short, progesterone is a female sex hormone that is secreted by the corpus luteum to prepare the endometrium for implantation of the fertilized egg. Following implantation off the egg, the developing placenta signals the body to produce progesterone and prevent rejection of the developing embryo or fetus. Without this continuuing progesterone production, the endometrium would shed and menstruation would ensue. Therefore, progesterone plays a significant role in reproduction. Thus, progesterone...

  • Helps create a fertile, warm environment in the womb and promotes the survival of the fertilized egg through healthy implantation.
  • Strengthens and maintains the secretory endometrium which sustains the embryo throughout pregnancy.
  • Prevents the premature shedding of the secretory endometrium (menstruation).

As progesterone forestalls the shedding of the endometrium (where embryo implantation occurs), low progesterone levels - or a significant drop in progesterone levels - during the first few weeks of pregnancy may correspond with miscarriage.

Here, progesterone plays a 'secretory’ role in the reproductive organs. It stimulates changes in the uterus and supports pregnancy by increasing blood vessel and tissue development in the endometrium.

Progesterone, Fertility, and Reproduction

During a woman's cycle, progesterone levels rise rapidly at ovulation to provide a fertile environment for the fertilized egg. Here, progesterone is also responsible for the increase in body temperature at ovulation that lasts through most of the luteal phase. Beginning with ovulation, the corpus luteum produces progesterone for several days (and the concomitant temperature increase is in most cases easily measurable through methods of BBT/fertility charting).

If fertilization and implantation take place, the placenta takes over the role signalling progesterone production and in further maintaining a supportive environment for embryonic and fetal development. If fertilization does not occur, progesterone levels fall dramatically (usually after 10-12 days) triggering the shedding of the secretory endometrium (menses).

Because progesterone is essential in preventing the shedding of the secretory endometrium, a significant drop in progesterone levels during the first 10 - 12 weeks of pregnancy may result in a miscarriage.

Addressing the Issue of Low Progesterone Levels

Low progesterone can be detected by a blood test after ovulation or by charting fertility. Another sign of low progesterone is a shortened luteal phase that lasts less than 10 days.

There are several things you can do to boost deficient progesterone levels. Clearly, visiting a doctor to discuss the nuances of a particular issue may be the best first option. However, a fertility supplement, like FertilAid for Women, may help to bring progesterone levels into an ideal range for achieving pregnancy.

Women with a history of miscarriage can also use natural progesterone cream as soon as they know they have ovulated, to supplement their own progesterone; however, natural progesterone creams should not be used until ovulation takes place. Consult your physician for more information on the benefits of progesterone and uses/applications.

Other Applications of Progesterone

Progesterone has many other functions, among them protecting against fibrocysts, helping the body use fat for energy, and helping normalize blood clotting and blood sugar levels. Today, many health professionals claim that the symptoms associated with PMS and menopause are due not so much to estrogen, but to a deficiency of progesterone and an overabundance of estrogen. It is believed that progesterone balances estrogen and that an overproduction of estrogen can lead to health problems. However, consult your physician if you have any questions about using natural progesterone creams.

> Back to Preconception
> Ovulatory Dysfunction and Hormonal Balance
> Anovulation
> Short Cylces Why are short menstrual cycles a possible TTC issue?

Comments

I believe the best way for a woman to replace hormones is by getting them at a compounding pharmacy because these bioidentical hormones can be customized perfectly to address the woman's or man's need. A healthy and active lifestyle with essential vitamins is still the safest way to increase progesterone levels naturally. I guess the physicians should teach the option of bioidentical hormones and offer it to women who wants to take them.

Lance Chambers - Feb 27, 2010
Was this comment helpful?

Hi,i am on 100mg of Clomid but only started this last month. For the prev 3 months i was taking 50mg from day 2-6. I have since been gettinig bloods checked on day 21 and day 28 for progesterone levels. Consistanly my day 21 progesterone is at 6.5 and on day 28 rises to 12. What does this mean?

Anonymous - Feb 22, 2010
Was this comment helpful?

I took 150mg Chlomid this cycle and had a positive ovulation test (digital) on day 19. On day 22, my doctor had me go in for a progesterone test and said since it was only 7.1 I had probably not ovulated. What I want to know is was that too soon to test for progesterone levels? How quickly do they rise after ovulation? Also, I have been charting my temps and the day i had the positive test, my temp dropped, and now it has gone back up to around 98.

Anonymous - Feb 12, 2010
Was this comment helpful?

My cycle beging Dec 16th I had and HSG test to check for fibroids and to make sure my tubes weren't clogged up everything turned out fine my doctor wanted me to come in between 20 to 23 days of my cycle to have a progetsterone test done. Right after the HSG I started back bleeding again that same day my doctor told me it would stop. I never stopped bleeding after the test until Jan 4th which was the day I had my progesterone level checked and my doctor said it was low. I'm a bit confused about everything can anyone explain to me why the constant bleeding and did that have anything to do with my progesterone levels being low?

Mechelle - Jan 07, 2010
Was this comment helpful?

Hi everyone.Myself and my fiancee have been trying to concieve for 3 years now after several miscarriages i developed PCOS and then infertility. I am 25 and was not ovulating. I have been having treatment for the past 3 years and nothing has helped. I started on Clomid two months ago and just had my Day 21 and Day 28 Progesterone results. Day 21 was 191 and Day 28 was 9.
What does this mean? I have just finished taking the 3rd lot of clomid and will be having my blood tests over the next few weeks. I tak 50mg on days 2-6.
Happy i have ovulated but downhearted not pregnant.You just begin to give up hope.

Good luck to you all

rachel - Jan 05, 2010
Was this comment helpful?

Hi. I am 30 and have been ttc for a second child for almost two+ years. I have charted since Feb 2008, after an early miscarriage, and my luteal phase is between 7 and 9 days long. I saw a doc for blood test in September (09) and my progesterone level was 5. My doc said that means I don't ovulate...although my charts show ovulation patterns?
They won't help me because I was breastfeeding up until June (09) and say they want me to have a 'longer gap' since stopping. My daughter was only on two nursings a day. And I have had 7 cycles since we stopepd and not a single day added to my luteal phase? That can't be right if it was nursing related???
I have tried upto 300mg B6, Vitex, Maca Root, Progesterone cream all to know effect. My doc did give me progesterone supposities for two cycles (and they were longer as AF didn't come until I stopped) but she wouldn't give me more. She says I have to wait until Feb and then she will refer me to a fertility clinic...but the waiting is so hard!

Jolene - Dec 21, 2009
Was this comment helpful?

I had my blood taken 10 days ago and my level was 1 on day 31 of my cycle and I still hadnt started my period, but I also had an ultrasound that said I had some huge follicles that meant I was just about to ovulate. I went today (day 41) and had my blood drawn again and it said my hcg was ZERO and my progesterone was 3.5, what does this mean? Could I still be pregnant since I wouldnt have ovulated till a couple days after the ultrasound? I thought maybe it was too early to show up. It hadnt been 10 days yet. I still havent started and I thought based on the ultrasound that I should either be pregnant by now or have already started since the ultrasound said I was about to ovulate. All of this confuses me...if Im not pregnant, WHY am I not starting??? Somebody please help!! Thank you!

Michelle

Anonymous - Dec 17, 2009
Was this comment helpful?

To Bella: A progesterone level of 1 means you haven't ovulated yet. After ovulation the number should go up on its own, but if the number is not over 10, you can get progesterone suppositories by prescription.

To Lily: 27 is a FANTASTIC level for early pregnancy!

To Anonymous: A level of 20 is excellent, especially since you're somewhat close to having your period!

To Vern: A level of .6 means you haven't ovulated yet. Breastfeeding is a very common cause of anovulation (meaning that you're not ovulating), and there's nothing to worry about. Once you stop breastfeeding you should begin to ovulate.

To Saiful: A level of progesterone that high (156) is only normal in mid to late pregnancy... Any other time that is too high.

Elana - Dec 17, 2009
Was this comment helpful?

I HAD MY TAKEN AT 1 DAY AFTER OVULATION. I GOT MY RESULTS BACK AND IT WAS 14.8. mY QUESTION IS SHOULD IT BE THAT HIGH AFTER JUST ONE DAY? I AM ON CLOMID 100MG START ON DAY 3-7 AND METFORMIN 750MG A DAY.
WILL THIS ALSO AFFECT MY RESULTS AND WHAT IS THE DIFFERNACE?

Anonymous - Dec 15, 2009
Was this comment helpful?

Post new comment

The content of this field is kept private and will not be shown publicly.
CAPTCHA
This question is for testing whether you are a human visitor and to prevent automated spam submissions.
top
First Day of Last Period:
Cycle Length:
top
Luteal Phase Length:
top
Ovulation:
Due Date:
Fetal Age:

Note that you are most likely to get pregnant if you time your lovemaking to occur on the days right before - and on - your ovulation date. Keep in mind that the projected ovulation date above is simply a “best guess” estimate based on your cycle date information. The most accurate way to pinpoint your most fertile time is through the use of urine-based ovulation tests or with a fertility monitor. We have partnered with Early-Pregnancy-Tests.com, the Internet’s leading supplier of preconception products since 2001, to offer low-cost, FDA-approved pregnancy and ovulation tests – with free same-day shipping.

 

Now that you’ve calculated your ovulation date using our ovulation calculator, we have a number of other helpful tools you can use to help increase your chances of conceiving.

 

  • Create your own personalized ovulation calendar! You can even provide an email address so that you receive email alerts of your most fertile days, when you can begin testing for pregnancy, and more.
     

  • Create your own personalized fertility chart! This is a highly accurate way to pinpoint your ovulation date that relies primarily on basal temperature charting. (Visit Early-Pregnancy-Tests.com for an accurate, inexpensive basal thermometer.)
     

  • Connect with others at our online community! If you have questions about trying-to-conceive – or if you just want to vent a bit – we have a wonderful, vibrant community of people who’d just love to hear from you.

Find your most fertile time.
top