In order to calculate the days to get pregnant in a woman's cycle, we will have to find out on when the woman  is ovulating. In a perfect woman's cycle the woman ovulates on her 14th day after her periods start. However this is theoretically, the 14th day is measured on a complete women's cycle of 28 days. If you take the pill, that figure will be correct, but without any anti-conception most woman's cycles will last longer or shorter. The best time to get pregnant will be much more difficult to measure with an irregular woman's cycle.

When is the best time to get pregnant then? There is a lot of writing about taking the temperature of your body to determine your ovulation day. But we all know how difficult that is and how unreliable those measurements can be.
When the woman's temperature raises about 0,8 degrees F an ovulation could occur within 24 hours. Because the body temperature for ovulation can be influenced by so many factors like: stress, action, sitting down and standing up, and etc., taking your temperature for ovulation is probably the worst method to stipulate the days to get pregnant in a woman's cycle.

A far more accurate way to know when are the best times to get pregnant, is to start child-wish.com program:
get pregnant fast, an unique method composed by our head fertility expert Yvonne Wilson. 
The use of a combination of two natural products. It doesn't matter if your current cycles aren't exact 28 days. The combination will control your hormonal balance so your cycles will be as close as 28 days. Three dates for intercourse, given by Yvonne are enough to triple your chances getting pregnant.

Be aware that the intercourse dates can be in the morning as well as in the evening, so making time to follow the method strictly is necessary!