Starting Benadryl/baby aspirin/steroids for FET?

Hey IVF crew,

I’m prepping for FET#3, today is day 3 with transfer happening July 5. I know my doctor said we are adding Benadryl, baby aspirin, and prednisone for this medicated round, and I forgot to ask when those all happen in the protocol (though I’m sure I’ll get instructions as I get closer to transfer day). Curious for folks who have taken the above 3 for medicated FET- when did you start taking each of these for prep and how long you keep taking each?

Thank you!!