How To Measure Temperature For Ovulation
Before ovulation a woman s bbt averages between 97 f 36 1 c and 97 5 f 36 4 c.
How to measure temperature for ovulation. Your basal body temperature bbt is your lowest body temperature in a 24 hour period and it increases slightly right after you ovulate. Also poor sleeping habits can skew the results. Your body temperature dips a bit just before your ovary releases an egg. If sinus congestion forces you to sleep with your mouth open for example your temperature may be thrown off.
Right before ovulation basal body temperature usually drops with a sharp increase right after ovulation. Bbt is the lowest temperature your body reaches in a 24 hour period. After ovulation it rises to 97 6 f 36 4 c to 98 6 f 37 c. In the first phase of the cycle bbt usually stays below 98 6 f 37 c.
Illness stress or difficulty sleeping. Using a special thermometer you can track your basal body temperature over time to estimate when you ll ovulate and figure out your most fertile days. Basal body temperature is the body s lowest resting temperature which can be measured in the morning as soon as you wake up. Then 24 hours after the egg s release your temperature rises and stays up for several days.
The basal body temperature method is often combined with another method of natural family planning such as the cervical mucus method. A good starting point. After ovulation the cervix becomes firmer lower and closed or partially closed. A cheaper way to get in tune with your ovulation cycle is to chart your basal body temperature bbt and monitor your cervical mucus.
In general the temperature range after ovulation is between 97 to 99 degrees at least two tenths of a degree greater than your temperature was during the previous week. When used correctly they are about 99 per cent accurate at detecting the lh surge before ovulation. Using bbt to predict ovulation is a simpler alternative to gynecologic ultrasound. The basal body temperature method can also be used to detect pregnancy.
Even a relatively benign cold can mess with your bbt charting. Regular measuring can help you find ovulation day. However to measure this small yet significant shift you need to measure bbt basal body temperature which requires a thermometer showing two decimal places. Following ovulation a rise in basal body temperature that lasts for 18 or more days may be an early indicator of pregnancy.