I've had my nails/toes done during pregnancy also. Baby is still in there and growing.
I do want to tell you though that some of the ingredients in regular nail polish "can cause birth defects" according to the manufacturer. In the first trimester (when all the vital organs are forming) I used only nail polish that is specially formulated and made without the chemicals potentially harmful to baby. I don't feel it's a huge deal or anything to lose sleep over though. The amount of chemicals that actually could get to the baby are (in my uneducated guess) too small to afffect him.