Saliva testing vs blood draw

My endocrinologist will be leaving soon and I need to find a new doctor. I spoke to a place that uses saliva testing instead of blood draws. One plus, is that the new place prescribes HCG and an AI if they're needed right off the bat, but my doctors office does not.

My question is, is saliva testing as accurate as blood draws?

Anyone?

I'm doing pretty good right now. I inject 2x/week and zinc is working for E2 control. But I've read conflicting reports on saliva testing.

Obviously like with most anything blood test are going to be a LOT more accurate

I should probably ask them if they'd do blood instead...