FET cycle question

So I never got anywhere close to a transfer, my previous retrieval cycle resulted in zero normal embryos. This time, 6 managed to shock me and survive to be biopsied (for reference, I have a chromosomal reason to do genetic tests-Several people have commented on my pgt posts previously suggesting I shouldn’t do this-it is necessary for me). While I wait on these results, I’m trying to understand the FET process, but there’s usually not enough or clear enough information where I’ve been looking.

What exactly is the overall process? For women who paid cash for their medications, approx what did you spend on your FET meds alone?