Miscarriage

Many factors affect fertility and therefore relate to miscarriage. Some of these are:

Evidence of the linkage between progesterone and miscarriage is the fact that one of the least known but commonest causes of infertility is a lack of progesterone during the second half of the monthly cycle. This is known as a "defective luteal phase". For pregnancy to be successful estrogen first builds the lining of the uterus, then after ovulation the role of progesterone is to thicken that lining ready for the fertilized egg.

Recent research has shown how often conception occurs in a fertile woman only to be followed by failure of the egg to embed itself in the lining. Progesterone is vital for pregnancy, hence it's name...'pro-gestation'. If the interval between ovulation and menstruation is too short (less than 12 days) it means there has not been enough progesterone produced which could result in a miscarriage as early as the next menstruation.

The only sign would possibly be a heavier period and/or pain. The reason for this is that the egg takes about 14 days to reach the uterus, and unless the ovaries maintain a high level of progesterone during this time menstruation will occur before the egg is embedded.

Another cause of infertility is the anovulatory cycle, in which a woman does not ovulate. This has always been common in women from their mid-thirties, but research has found that increasingly younger women are also suffering from these cycles. Too much estrogen during the luteal phase, particularly the xeno-oestrogens such as DDT, can cause miscarriages.

To avoid them and reduce infertility optimum health is essential. Follow these guides :

To overcome a defective luteal phase extra progesterone is needed. Progesterone can often stimulate ovulation or correct irregular cycles. Supplimental progesterone should be used from ovulation or, if time of ovulation is not known, from not more than 14 days before the next menstruation.

Progesterone therapy should be continued until pregnancy is assured and up until the fourth month, when the placenta will have taken over the manufacture of progesterone.

On no account must the progesterone be stopped suddenly as a miscarriage might occur. A normal cycle can be from 21 to 36 days, varying up to 4 days each month, with ovulation coming approximately 14 days before the start of menstruation in each case.

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