I did. We moved into our place and painted all throughout the whole house, i didn't even know i was pregnant at the time!
I freaked out when i found out i was, but i rang the health and safety people of the paint places, and they all said as long as we used waterbased paint and kept the rooms well ventilated, there shouldn't be any kind of problems. We did use water based, and kept the whole place as airy as possible.
Good Luck!