LH levels and Questions

I’m just curious about everyone’s “highs” because the highest readings I get are 1.8. Is that even high? Is it normal? I’m on prenatals and femara on days 3-7 of my cycle(s). I also take vitamin d and iron daily. I have a drs appt the 26th, what should I ask my dr?

Background info: We’ve been trying 3 years and I tried 3 1/2 years with my ex. Our marriage ended when he got a coworker prego thinking he was shooting blanks.