If your labs are measuring E2 at 20 this doesn’t mean your E2 is always at 20. It could be 30 or 35 ect 2 days before you are checked. Point being that your hormone levels will bounce around and the 20,30,40 range is all close enough that within a given week you may be at all of these levels.
I get what you are saying about lab cost. I just dropped $400 for follow up labs and $640 for follow up meds. This can get expensive.
