I am looking for techniques on performing cervical exam. I have only done 2 so far and am not "getting it". First off, everything feels so soft and mushy, not at all hard and rigid like the dilitation tools they give you. Any advice on finding a really thin, dilated cervix? For example, on my last exam, I think I went right past the cervix to the baby's head. Can you give me tips on "what" I should be feeling for? THanks so much!