I used pessaries with all my cycles during my first STIM cycle and i didn't like them, my body didn't really absorb them and by my last FET i was on 4 a day! and still had a low progesterone level. You also have to lay down for half an hr after inserting them morning and night and it does come out. For this STIM im on crinone, i havn't started using it yet but im hoping i will get better progesterone levels this time, but don't let this worry you as it could just be my body that dosn't absorb it very well?
Goodluck xx