Has anyone tracked their basal body temp and noticed a big temp difference in thermometers?
I started tracking mine every morning for the last 13 days and have noticed only low numbers in the mid to high 96s with the highest being 97.9 (ovulation?), then dropping again to 97.4.
So I decided to compare this digital basal thermometer with my other digital basal thermometer and there was a huge number difference! (Note: I did this test in middle of the day, so I'm not recording it or anything).
The one I've been using said 97.1 while the other themometer said 98.2! I tried it again and the first read 97.4 while the other read 98.6. These are obviously huge differences for charting as the low numbers could mean hypothyroidism (of which I have no real symptoms) or something else. Both thermometers seem to be working fine with no low battery indications.
Any advice on which one of these I should use, or what I should do? Charting is worthless if the numbers are way off.