Methods that limit the fertile time
period of a couple, are summarized under the
term Natural Family Planning
(5 - 6 days: the maximum survival time of an ovum
is 18 - 24 hours, plus a maximum of 4 - 5 days survival period of
the male sperms) .
Effect:
The
most reliable NFP method is the so-called
"Symptothermal Method" .
The
fertile
period of a woman is determined based on certain observations, e.g.
body temperature or vaginal discharge.
