so i decided to make another chart so i can use the other therm. while temping i went home today and i played with the therms. a couple of times and they did not match when i took my temp. w/ them at the same time. they were off by 3 degrees. so i decided to make a FC chart with the 97.12 temp i got this morning and keep FF the same with the old therm at 97.3 and FC gave me a CH and it says im 3 dpo

im starting to liek this chart even though its probably lying to me ....hahahah i just thought it was funny! why would FC give me an Oing date and FF not? isnt the program the same?