I agree with the previous posters, it is not harmful to spraytan pregnant women (a lot of my friends even had spraytans done in the 1st trimester), but some precautions should be taken such as wearing a mask to minimize the inhalation of the fumes when spraying the body and ask her to hold her breath when you are spraying her face. And due to increased melanin production some darker areas might appear on her face or body which are not actually due to the spraytan, but the skin underneath, but the spraytan will make it look more prominent. As long as you make her aware that she might react differently to the spraytan (like the points mentioned above or also the smell could make her really nauseous).
Hope that helps :biggrin: