ree ree - my last transfer started out with low prog (think around 24 at transfer day), after being on 3 pessaries a day. i requested extra support (pregnyl), but they gave me gestone injections instead (supposed to be better than pregnyl). had an injection on transfer day and next BT prog. had risen to 44. if you're worried you could ask them for a prog. injection, it seemed to act fairly quickly me.