Laura O.
I don't know if they are dangerous for the fetus or not , but would think if they were, my sister's OB would have mentioned it to her during her pregnancy. She has both her tongue and navel pierced, and delivered a healthy set of twin boys by c-section in Nov. 2003. Her biggest concern was when she might have to remove her navel ring because of how big her belly was getting. She never did, and all was well. Good luck! :)