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Ovulation and Conception
How does the probability of conception change during the days near ovulation?
 The probability of conception increases as one approachs the day of ovulation, with your cumulative probability of getting
pregnant totaling 72% on the 4 days prior to ovulation (assuming intercourse on each of the 4 days). This is because sperm
can live for up to 6 days in the reproductive tract. Therefore timing intercourse appropriately before ovulation maximizes
your chance of conception. (See "Probability of Conception" Wilcox NEJM 1995)
Ovulation & Conception: Sperm Quality
It is also important to have a high quality of sperm to fertilize the egg. For this reason many doctors and specialist
recommend having intercourse every other day starting from the first day the OV- Watch® reads "Fertile Day 1", so that
there is a greater quantity of sperm. There is no doubt that intercourse on multiple days throughout the six-day Fertility
Window raises the overall probability of successful conception. This is where the reproductive health of the male plays a
significant role in the success of the couple. Measurement criteria include sperm-count, motility, cell morphology and
general composition of the semen. Since sperm concentrations drop with increasing frequency of intercourse, it is a good
idea to have reliable information regarding the man's reproductive health to make the right decisions on timing and frequency.
All of these factors on the probability of ovulation and conception are all significantly aided by the OV-Watch® which is the only
fertility monitor on the market today to give you the full 6 days of the month that you can achieve pregnancy.
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