Anyone else dilated at 33 weeks and received CELESTONE SHOT?

Cyndi
I'm currently 33 weeks and yesterday I saw my Ob due to pelvic pain. She checked my cervix and said I was 3cm dilated. At my 32 week visit my baby measured 5lbs 3 oz. so she sent me over to the hospital for some testing. I was hooked to machines to monitor the baby and my contractions. Apparently I was contracting but I didn't feel it. They gave me my first stage of Celestone. The nurse said its to help mature my baby's lungs. I'm nervous! Has anyone experienced this?