April 15th, 2011, 09:02 AM
|
 |
It's me
|
|
Join Date: Nov 2010
Location: Massachusetts
Posts: 5,064
|
|
|
If they only test for progesterone, you won't know if you are pregnant.
Factoid
The corpus luteum pumps out progesterone to "heat up" the body and womb in preparation for pregnancy. Progesterone also helps the endometrium thicken and become more vascular, and in this way the endometrial lining becomes like a "soft pillow" to catch the descending blastocyst (fertilized egg). Also, progesterone sends a signal to your brain to not commence with menstruation, the shedding of the uterine lining known as your period.
With progesterone high, women may experience tender breasts and nipples. Confoundingly, this is also an early pregnancy symptom as well. If you are fertility charting and you know where you are during your cycle, you can dismiss this early tenderness as a possible effect of post-ovulation progesterone. However, if tenderness continues or intensifies when you normally do not experience this sensitivity, you may have an early pregnancy sign. Progesterone can also precipitate PMS-symptoms like irritability, moodiness, etc.
Once a fertilized egg has implanted, the HCG it starts creating tells the corpus luteum to keep making prgesterone. If it doesn't detect the hcg, the progesterone production stops and your period starts.
__________________
|