Symptothermal Method, STM, what is this?
During your cycle, as soon as you have entered about 9 to 13 waking temperatures as well as your cervical fluid observations – this fluid is the true life elixir for the sperm cells –, the sympto programme calculates the infertile days before ovulation, the fertile and highly fertile days around ovulation and the infertile days after ovulation. Sympto surveys your cycles to delimit your fertility window. After the irst 12 cycles, most women will have more than 5 infertile days at the beginning of the cycle. Thus about two thirds of your cycle is clearly infertile.