Relax... they will be fantastic! I actually had a lot of fun taking my BD pics I got all made up, felt really beautiful, and just had fun with them. If you are comfortable with the photog (which I think is the most important part), then you will be fine, and the pics will be fantastic! My DH LOVES his BD album, and was shocked to get it. He never would've guessed that I would do something like that, which I think makes them even sexier.
Tracy - BD photos are sexy pictures - no rules, just whatever you think is sexy. A lot of girls have done them, so if you do a search on here, you will find a lot of posts. Many of us have gotten recommendations from girls in our area, but you can also find photogs online who do boudoir. I would highly recommend meeting with someone before booking to make sure you will be comfortable with them.