After my first IVF failure from a fresh transfer my RE switched things up and felt that for me I might be a better responder doing a FET and let my body heal after another fresh stim. ER was last week.
Anyhow, my RE is doing a hysterscopy and mock IVF at the same time which includes an endometrial biospy a few weeks prior to my transfer. I’ve heard many of good things about having an endometrial biopsy prior to a transfer. I’m told by my RE he does a mock IVF transfer for those doing FET. Seems common enough…maybe not doing all the time but not unusual. Are you having a FET with this?
Will your RE do an endometrial biopsy as well with the mock IVF transfer?
When you asked your RE why he wanted this done did he explain his rationale?