Temp plus 3 rule: One of the four rules of using FAM as birth control: you are considered infertile the evening (after 6 PM) of the third consecutive day that your temperature is above the coverline.
Temp Plus 3 Rule
Temp plus 3 rule: One of the four rules of using FAM as birth control: you are considered infertile the evening (after 6 PM) of the third consecutive day that your temperature is above the coverline.