before I flame you, do you have a reason why you wouldn't want to get the progesterone? I'm on it right now, and honestly, the side effects are minimal. the shots don't really hurt.
I had a short cervix with my son. at 24 weeks I was measuring a 1.4.. Unfortunately, the shots weren't offered back then and it was too late for a cerclage.. i spent the next 10 weeks, in and out of the hospital on bedrest, sometimes in a bed where my feet were above my head to take the pressure off of my cervix. I was hooked up to a catheter and couldn't get up to pee.
My son was born at 34 weeks and spent a week in the nicu. we both were lucky.
this time around, i'm doing the shots (no cerclage) and my cervix has been stable and measuring fine.
i'm not trying to scare you, but a short cervix is not something to mess around with. if the doctor recommends shots, go with the shots.