This is the demo version of the PERIMON ovulation calendar (in contraception mode). PERIMON works as a family planning software, a cycle monitor and as a conception tool. Please register to start your own, personalised ovulation calendar.
It is not evident whether you are currently fertile or infertile
Move the mouse over the beginnings and endings of the coloured stripes to display the exact time of day.
*) Information about fertility in accordance with our disclaimer: Please take into account that this information might be incorrect as contraception is never 100% safe. If you examine you mucus or you cervix you gain additional infertile days and increase the safety
TESTIMONIAL
“And I really thought, this must be much less safe because of the pure calculation [...] My compliments (symptothermal NFP user)”