Chart variations

Chart Variations

It is not unusual to have a chart that does not match the ideal textbook pattern. Your chart can still be very ‘normal’ and not fit the ideal.

Some women will only occasionally have an unusual cycle, while others will rarely see an ideal chart pattern. A bit of extra flexibility is required to interpret charts that do not have textbook patterns, but it is usually still possible to identify your ovulation date and analyse a chart that does not match the ideal.

Charting multiple fertility signs is important to interpret ambiguous charts because you can "cross-check". There are several ways that your chart may differ from the ideal pattern.

Chart variations

  • Slow sloping rise – your temperature may rise in a slow or gradual rise rather than an abrupt shift.
  • Fall-back rise – your temperature rises as it should and then there will be an abrupt dip at some point before it returns to rising again.
  • Sawtooth rise – temperatures rise, fall slightly and then rise again in a zigzag type pattern.
  • Staircase rise – the line may resemble a staircase.
  • Erratic temperatures – you may have temperatures that are all over the place.
  • Out of place temperatures – you may have a temperature that is abnormally higher or lower than the temperatures around it.
  • High temperatures during period are common.
  • Erratic temperatures during period are common.
  • You may get a dip before ovulation.

Keep charting and you will become familiar with your unique patterns of fertility. If both your primary and second fertility signs indicate you were fertile and that you ovulated and you timed intercourse to coincide with that time, you are on the right track!