I'm glad that you have experience BEFORE going to an L&D floor. I hope your assessment skills have been honed to a fine point. In L&D, you have two patients in each bed: MOM and BABY. (Not to mention the family dynamics of each particular situation.) You'll have to be able to assess the condition of each, both independent of each other and dependent on the other and make decisions based on what's best for one or both. It's an art.
If you know what you're doing, develop skill and confidence, I'm sure you'll do fine. Learn your stuff, and have fun. In a teaching hospital, you'll certainly learn lots...and hopefully all the residents won't take all the critical experience from you. At my hospital, we're private, non-teaching, and the nurses do everything but deliver (well, a lot of times, due to timing and maternal/fetal factors we do deliver
). We do IUPC/FSE insertion too, which I've found many places don't have the nurses do. The only thing we don't do is insert the first Cervidil/Cytotec/prostagladin.
Just relax, breathe, ask questions, watch, learn and hopefully you will love it as much as I do.