Ovulation is the process in the females menstrual cycle by which a mature ovarian follicle ruptures and discharges an ovum (also known as female gamete, or casually, an egg) that participates in reproduction. It is hard to understand the meaning because of the phrases being used. For many people, ovulation means a time when the woman is fertile enough to get pregnant. One of the most common method used to predict ovulation is calendar based method, the method which based on a record of the length of previous menstrual cycles, as originally developed by John Smulders in 1930.
This is a simple ovulation calculator tool that using John Smulders approach to predict the fertility of female. Since this tool is only a simple tool, do not make the result as your real reference, because getting pregnant will depend on many factors. Please confirm to your doctor to get an exact information regarding your fertility period and any fertility problem that may arise.