The {rhythm method} involves planning intercourse during the time a woman is not fertile. This depends on when the woman partner {ovulates} & may be accurately predicted by monitoring her temperature (see 'Conception' section). Intercourse can safely happen up to 7 days before {ovulation} & when 7 days has elapsed after ovulation.
The time between 7 days before ovulation & 7 days after ovulation is not safe. The other 14 days is considered to be safe. However, there are exceptions; some women may {ovulate} at odd times in the cycle (this is rare).
