As a fellow new grad, I can verify that what the above posters say is true. More than likely, you will not be able to slide right into a specialty area. I applied to about 60 OB jobs before realizing that it wasn't going to happen. Where I live, new grads are a dime a dozen and I was blessed to land a med/surg float pool job. It's not what I wanted at the outset, but it is a great learning experience. Get your one year in med/surg and you will have many more options.
Best of luck to you in your search!