New here.

Hi so just a question as I'm trying to conceive I just started using the mira fertility monitor which is a help to tell me my lh numbers but I just found out about keeping track of temp so I have a ovulation them um but im very curious is that what you use in bbt and can u use it sticking it under your armpits..?? Or does it go down there sorry please don’t laugh at me im new at this.