already on progesterone injections, now suppositories

[Autumntx]

My Dr just called telling me my progesterone levels have fallen a bit even though I do injections twice a wk and have been for almost my whole pregnancy. I'm 29 wks and he wants me to continue the injections but he is also putting me on suppositories daily. I have a great doctor and I am so thankful he's cautious, but I am so ready for my due date to get here!!! Anyone else this far along and still on progesterone?