Does your BBT go up if you are warm?!

Does your BBT go up if you are warm?

Hi there! I started taking my BBT this week for the first time. I am in South Africa and it has been very cold here. The past week I have been very cold at night and my temps were fine. Last night i dressed in VERY warm clothes and socks and my temp is up with nearly 1 degree celcius! Can your BBT go up if you are hotter or does your internal temperature stay the same?

3 weeks ago
One degree celcius up, which is 33 degree F??

Basal body temperature is the body temperature measured immediately after awakening and before any physical activity has been undertaken. In women, ovulation causes an increase of one-half to one degree Fahrenheit (one-quarter to one-half degree Celsius) in basal body temperature (BBT); monitoring of BBTs is one way of estimating the day of ovulation. The tendency of a woman to have lower temperatures before ovulation, and higher temperatures after wards, is known as a biphasic pattern. Charting of this pattern may be used as a component of fertility awareness.

So I guess it has nothing to do with out temperatures only with inner changes. If you drink a hot drink it might raise your temperature a bit for a short while but I suppose the warm cloth can also hike it up a bit - 1 degree is not that much is it? :)