I did a natural FET straight after my first IVF. There were no meds prior to transfer - I just went in for monitoring and we waited for me to O. After the transfer I was on 2x200mg progesterone pessaries daily. My FS said they were probably unnecessary, but he'd give them to me anyway. I think it's probably good he did because my LP is usually shorter after an IVF cycle.

I think if you do a medicated FET you don't ovulate? I liked having another chance for our cycle to work with the natural FET.