The Basal Body Temperature method involves measuring your body temperature each morning

Obtaining a thermometer
A digital basal body temperature thermometer or an accurate digital thermometer is recommended as these are easier to read and will 'beep' to let you know when your temperature has been accurately recorded. You should use the same thermometer throughout a cycle.
There are a number of manufacturers that produce thermometers especially suited for charting basal body temperatures. Typically these have a finer range, increased sensitivity measuring up to 1/100th of a degree and specialised memory features. Baby 4 You are stockists of the flexi style, high accuracy, 1/100 degree scale, auto beep OuvTemp basal body thermometer.
Taking your temperature
Prior to going to bed in the evening leave your thermometer within arm's reach of your bedside. As soon as you wake up (and before doing anything else) take your temperature according to the directions given with your particular thermometer.
You can take your temperature orally, vaginally or rectally so long as you take in same place for the duration of your cycle. You should take your temperature as close as possible to the same time each day, as your temperature can vary with time (0.1 C per hour)
Recording your temperature
Record your temperature and date either directly onto your BBT chart or onto a piece of notepaper to add into your chart or charting software latter in the day. BBT thermometers often come with a complementary blank chart that be easily photocopied. Our flexi basal thermometer comes with such a chart or you might like to download our alternative version for free.