Painting is fine as well as it's in a well ventilated area. If you're concerned about inhaling any paint fumes then simply wear a mask to cover your nose/mouth. As long as it's not anything too strenuous then you'll be fine, just make sure not to over do it and keep hydrated and take breaks.
if i were u, i would not, just say i am pragnant , then just sit and relax :D
Yes, it's okay to paint in a well ventilated area.