All women know that there are always some days in the month when the chances of getting pregnant are higher, beacuse you are ovulating. Thus a tool like Ovulation Calendar Calculator 2.1 will be useful as it indicates (from the data of your last period) which are the most appropriate days of ovulation so you stand a better chance to get pregnant.It also has another series of utilities which will indicate, from data like sleep rhythms, pressure, body temperature, etc, the best days to conceive.