Yes. Studies have shown the Sympto-Thermal Method (STM) to be highly effective in avoiding unplanned pregnancies. For the 168 Canadian couples who participated in the Fairfield Study , among those who used the method correctly and consistently, the study showed an effectiveness rating of 0.5 unplanned pregnancies in 100 women. These rates match the effectiveness rates published for hormonal contraception.
When a pregnancy is desired, the knowledge that a woman is ovulating in each cycle provides basic information about the woman’s reproductive cycle. This enables a couple to plan the timing of intercourse prior to or at ovulation in order to conceive.
The Sympto-Thermal Method does not protect against sexually transmitted disease.