Hi Dani,
I don't use the Maybe Baby, I use my daughters microscope. I can move my slide and look at different parts to see if there is any ferning. I think this works ok. I am not sure exactly how the Maybe Baby works but maybe it doesn't allow you to look at enough saliva??

Anyway I am sure that helped... NOT, I just thought I would let you know my experience.

Good luck with your tww too, how long to go?
Tanya