IUI natural

Has anyone done a natural IUI with my OBGYN with a sperm donor . (I do not have any infertility issues am in my late twenties. Had all the testing done HSG , blood etc. Ovulate every month like clockwork. ) I know from what I seen most people do medicated. I don’t want to put that stress on my body and honestly that’s a lot of money. Has anyone done natural when did you done the IUI was it’s 24 hrs after positive opk.

Thank you if anyone has any advice.