Basal Body Temperatures

Hi, my BBT was 36.2 on the day i was due to menstate & the day after, but today it's 36.7, what does this mean please? (my cycles have gone from 27-29 days in the last 7 months & now, today is day 30...I'm 40 years old & have no children [yet!] even though all my exes either already had kids, or have had them since with other women)

[Dr. Kokil Mathur]

Hi!
Usually BBT raises at the time of ovulation and persists at this high range if a woman conceives. If your BBT rose after the day the periods were expected, then either the measurement was wrong or you are likely to have a long cycle and have just ovulated. Hormonal imbalance can also cause a difference in temperature measurement. If you have been having problem conceiving, buy an ovulation prediction kit and try close to ovulation. Also, consult a gynecologist ti find why you have unable to conceive. Take care!