Fetch tranfer question

We've gotten our embryos frozen last year... and so I'm searching for what will be the next steps on how to do it but I could find anything (maybe I dont know what to search for properly). Can anyone please let me know what are the usual injections used for preparayion(?) How long it takes and etc? I feel like the doctor that I got made us pay so much for the freezing that she'll drag out the transfer to get more money from us. I feel terrible about how much we spent last time and thought I should've looked into other doctors first before going her. 🥲 I got told recently that she's got the tendency to do this that's why I wanted to ask here what the procedure is like first so I can ask her the right questions and all. Thank you!