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            <p>Progesterone is a hormone produced in the ovaries during the second
		  half of the menstrual cycle that helps prepare the uterus for pregnancy.
		  Progesterone is also produced by the placenta during pregnancy and helps the
		  placenta function properly. </p>  <p>At the end of pregnancy, a drop in progesterone helps start labor
		  contractions. </p>  <p>When a woman reaches the end of her reproductive years and begins
		  menopause, her level of progesterone declines.</p>
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              <span class="HwInfoLabel">Last Updated:
            </span>May 16, 2008</p>
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              <span class="HwInfoLabel">Author:
          </span>Robin Parks, MS</p>
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              <span class="HwInfoLabel">Medical Review:
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              <span class="HwInfoName">Anne C. Poinier, MD - Internal Medicine</span> &amp; <span class="HwInfoName">Kirtly Jones, MD - Obstetrics and Gynecology</span>
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