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Pregnancy only occurs if intercourse occurs within 6 days prior to and including ovulation day. Intercourse after the day of ovulation is not likely to result in pregnnacy.
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By Michael Russell
The alarming rate of infertility among couples calls for serious efforts and attention from any woman who is serious about getting pregnant. Most women, and sometimes their partners, would want to learn when ovulation and implantation occurs, what is the best time for intercourse to achieve pregnancy and probably what are the usual miscarriage or pregnancy loss rates. Most often, the figures and data women are given are based upon averages, theoretical numbers or sometimes just plain guesses. This is because, ovulation, conception and implantation of fertilized ovum are a difficult topic to scientifically investigate, due to several human factors.
Timing the ovulation period is a very important step towards getting pregnant. With the latest scientific improvements, several methods and tests are available for determining, with a high degree of certainty, when your ovulation occurs. Pelvic ultrasound, looking at the ovaries, is the known standard in ovulation prediction researches, but obviously, in a practical situation of a woman trying to conceive, ultrasound is not feasible. A very important test which measures urinary LH has been shown to have a 100% correlation with ultrasound as far predicting timing. In a study, cervical mucous change only had a correlation of 48%, salivary ferning has 37% correlation and Basal Body Temperature charts correlated 30% with ultrasound ovulation prediction. You would, therefore, agree that those ovulation prediction tests are actually worth the headache.
For home use, ovulation detection kits that measure urinary LH surge just before ovulation, detection of LH occurs at above 30mIU/ml. This shows that even women with Polycystic Ovarian Syndrome (PCOS), with slightly higher resting LH values will still have accurate ovulation detection. The urinary LH surge occurs between 24-36 hours before ovulation. It is very important and useful for women seriously seeking conception because it gives you a window of warning. The test will show positive for a day or two and on rare occasions, three days, if you are lucky enough to catch the increase right at the beginning, when it is always a large release of hormone.
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