Coburg Clinic 03 9378 9479 Ringwood Clinic 03 8802 1519

How to Record Your Basal Body Temperature (BBT)

How to measure record basal body temperature (BBT)


BBT Chart

  • You should have at least 3 hours of continuous sleep before measuring your basal body temperature.
  • You need to prepare a normal digital thermometer. If you use a glass thermometer, you should shake the temperature the day before using.
  • It’s best to have an alarm clock and try to measure at the same time every day when you wake up (not when you get up). It should be the same on weekends.
  • If you wake up too early or too late, it is best to make a note on the chart of the day.
  • Measure your body temperature directly when you wake up in the morning (do not do anything before this –like going to the bathroom or give your husband a hug…).
  • There are two ways to measure body temperature: oral or transvaginal
    • Oral: Put the thermometer deeply between the root of the gum and face. Make sure your mouth is close when measuring;
    • Transvaginal: Transvaginal will be more stable, temperature may be slightly higher than oral.
  • Record the temperature immediately after recording.
  • Draw a cross at the appropriate temperature and make a line chart.
  • If the temperature is between two numbers on the glass thermometer, always take the lower number.
  • Record anything like emotional stress and illness such as a cold, fever, etc.
  • You can download the mobile app for easy recording. We recommend Fertility Friend here


Should you have any questions please feel free to  contact us or call us to make an appointment now.


Coburg Clinic: 03 9378 9479

Address: 21 Bell st, coburg, Melbourne, Victoria 3058

Ringwood Clinic: 03 8802 1519

Address: 31 Wantirna Rd, Ringwood, Vic 3134