PIO or progesterone suppositories

Dfll

Hi ladies. So I am having my ER in a few days and then I’m starting to mentally prepare for the transfer. I’m terrified of the progesterone In oil, I really do poorly With shots and didn’t realize I would be taking this for at least a month. My clinic said if I do the PIO I have to stay on it until I’m discharged, no switching to suppositories. However if I do a natural transfer that’s timed with my ovulation, they said I would use vaginal suppositories for that. So I’m wondering if there’s any benefits to the vaginal since it wouldn’t be a shot. Or if there are any benefits to doing PIO since they are so painful. Any advice appreciated!!!