Basal Body Temperature (BBT)
Your BBT (your body temperature at rest), is a critical fertility sign because it is the only sign that will tell you definitively that you ovulated. It also is the only sign that will let you pinpoint (to as close a degree as possible) when ovulation occurred. All your other signs tell you only that ovulation is approaching.

After ovulation, the body produces progesterone. Progesterone causes an increase in your body temperature that is observable when you measure your BBT with a special BBT thermometer just upon waking in the morning.

  • Take your temperature before rising in the morning as any activity can raise your BBT.

  • Take your temperature at the same time every morning.

  • Take your temperature after at least 3 consecutive hours of sleep

  • Keep your thermometer accessible from your bed so you do not have to get
    up to get it.

  • Use the same thermometer throughout your cycle if possible.

  • Keep a spare thermometer in case one breaks (especially if you are using a glass thermometer).

  • Temperatures can be taken orally (recommended) or vaginally but must be taken in the same place throughout the cycle since the temperatures of the different parts may vary. Most women prefer to take their temperatures orally and this is usually fine, though some women find that they get a clearer reading by temping vaginally.

  • Record your temperature soon after you take it (or ask your partner to) since most thermometers only store a reading until the next use. If you have to do something else or want to stay in bed, you can record it later.

  • If you must use a heating pad or electric blanket, keep it at the same setting throughout your cycle. Make a note of its use.

  • Take your temperature before doing anything else including eating, drinking or going to the bathroom. If circumstances arise that prevent you from taking your temperature right away, take it as soon as you are able and make a note of the circumstances.

  • Start your chart from the beginning of your cycle, i.e. when you start bleeding.

  • You may like to create your chart online, using websites such as www.fertilityfriend.com

Martin Dean
enquiries@acupuncturefertilitycentre.co.uk
0115 9251184