make love during the "twelve-hour window" that a couple can conceive -- it's really quite miraculous that a woman can even get pregnant at all! When a couple is trying to conceive, the trick is to catch the egg around day 14 of the woman's monthly cycle. To add to the difficulty, every woman's cycle is different. The 28-day cycle is the average, but normal cycles can vary from 23 days to 35 days. Most people have heard about the Basal Body Temperature. "Basal" means "the temperature of the body at rest." Most women experience a slight jump in body temperature just after ovulation. Women need to measure their body temperature every morning, before arising. A drawback is that the record must be meticulously kept. Remember, a woman who wants to conceive cannot get out of bed until she takes her temperature each day. This means before using the bathroom, having a cup of tea, or any other activity. Ideally, a woman who wants to conceive should have had sex on the days just before her temperature began to rise. So you can see that keeping temperature charts can only give you a general picture of when your most fertile time might be. It can let you know whether or not you are having intercourse close to ovulation. Women need to be observant of any changes in their bodies. One important change is that the cervical mucus is thinner and clearer during the most fertile period. In the early part