clearblue fertility monitor HELP PLEASE!!!!

Marcia • Currently Pregnant with baby No.2 EDD 11th March 2018 a little boy 💙 Got a beautiful little girl that was born 2015 💗
Ladies 
I have a fertiltiy monitor (not advanced) I'm new to it, it's been reset I worked that out.. eventually 🙈
Now day one of period arrive talk me through what I do? I'm confused (not hard to do) 
Do I just every morning turn it on until it tells me to test or..?? HELP