What does it mean if my BBT is all over the place?
Changes in your routine can cause fluctuations as well – for example, changes in sleep, travel, and sickness can cause the basal body temperature to fluctuate. These factors can cause the Natural Cycles’ algorithm to take longer to understand where you are in your cycle.
How reliable is BBT charting?
Using a BBT chart is safe, simple and inexpensive. But it’s not necessarily the best method for tracking your ovulation. With an accuracy rate of 76 to 88 percent, BBT charts are considerably less reliable than ovulation test strips.
How much does your BBT change throughout the day?
With daily monitoring of BBT, an increase of 0.5–1.0 degrees Fahrenheit (0.3 to 0.6 degrees Celsius) should be detected on the day after ovulation.
Can you be pregnant without a BBT rise?
If you have fertile cervical mucus but no rise in temperature, it could be that you’re not ovulating. 1 While fertile quality cervical mucus can warn you that ovulation is coming, so you can time sex for pregnancy, it doesn’t confirm that ovulation actually took place.
Can you have a BBT rise and not ovulate?
Be aware of factors other than ovulation that can increase BBT: emotional disturbance, stress, a cold or infection, jet lag, drinking alcohol the night before, using an electric blanket. Don’t pull all-nighters: You need to have at least three hours of uninterrupted sleep to get an accurate reading.
What does ovulation look like on BBT chart?
Your body temperature dips a bit just before your ovary releases an egg. Then, 24 hours after the egg’s release, your temperature rises and stays up for several days. Before ovulation, a woman’s BBT averages between 36.1°C (97°F) and 36.4°C (97.5°F). After ovulation, it rises to 36.4°C (97.6°F) to 37°C (98.6°F).
What can make BBT inaccurate?
Measuring temperature at a later time than usual, drinking alcohol and eating late in the evening can give inaccurate readings. Other factors that can affect your inner temperature are illness, medication (such as birth control pills), stress and jet lags.
Can you ovulate without temp rise?
Be aware that many other factors can cause changes in the basal body temperature, like fever, alcohol, stress, certain medications, sleep disorders and even travel. Some women can also ovulate without having a temperature spike.
Can a cold room affect BBT?
With oral basal body thermometers, room temperature can definitely raise or lower BBT. Make a note in your chart if you suspect something like room temperature will affect your BBT.
Does restless sleep make BBT higher or lower?
“Sleep disturbance, including insomnia, nightmares, restless leg syndrome, and poor sleep in general make you move around more at night, raising your body temperature.
What should BBT be if pregnant?
After the female egg cell is released at ovulation, BBT increases to between 97.6°F (36.4°C) and 98.6°F (37°C). Basal body temperature will drop again if pregnancy doesn’t happen. This temperature drop causes the uterus lining to shed, causing a period to start, and a new menstrual cycle to begin.