Use a basal body thermometer. These thermometers are more precise than standard ones, showing temperature changes as small as 0.1 degrees Fahrenheit. Take your temperature each morning before getting out of bed, at the same time every day.
Record your temperature. Use a chart, app, or spreadsheet to track your readings. Consistency is key! Don’t miss a day, as gaps in data make it harder to interpret patterns.
Look for a shift in temperature. After ovulation, your basal body temperature typically rises by 0.4 to 0.8 degrees Fahrenheit and stays elevated. This shift is a key indicator of ovulation.
Combine BBT charting with other methods. Tracking cervical mucus and using ovulation predictor kits alongside BBT charting gives you a more complete picture of your fertility cycle.
Consult your doctor. While BBT charting can be a helpful tool, it’s not a replacement for medical advice. Discuss your BBT charts with your doctor, especially if you’re having trouble conceiving.
Be patient. It takes time to learn how to interpret your BBT chart accurately. Don’t get discouraged if it takes a few cycles to understand the patterns.


