If you've been having an elevated basal body temperature or BBT for more than 17 days in a row after ovulation (with the absence of your menstrual period), it could be an indicator of pregnancy.
Have you been feeling warmer than your normally do?
During pregnancy, your basal body temperature is higher than your usual body temperature.
If you have been charting your daily BBT, while trying to conceive, have a low grade fever, have not had a menstrual period and it has been more than 17 days after ovulation,
that could also be an indication of pregnancy. Your basal body temperature usually drops slightly before you start your period. More below:
