Take temperature immediately on waking (before getting up, eating, talking, or moving) at the same time each day. Axillary (underarm) is the traditional basal method and the most stable: hold the thermometer snugly in a dry armpit for 5 minutes. Use the same site every cycle: do not switch between axillary, oral, and vaginal readings on the same chart. Mark a dot and connect dots with a line. Coverline: identify the last 6 low temperatures before the thermal shift; draw a horizontal line 0.1°F above the highest of those 6. Three consecutive temperatures above the coverline confirms ovulation. Record cervical mucus throughout the day and note the most fertile quality observed. Mark with a circle (and exclude from coverline) any reading taken after fever, poor sleep, alcohol, or more than 30 minutes off your usual wake time.
In the print dialog: set Orientation to Landscape · Scale to Fit · Paper size: US Letter