Laying in the sun for obvious reasons is not the best idea, but the worst is going into the spray booths. The air is full of tanning solution in a thick mist and your breathing that in?! Please stay out of them at least while your pregnant, if you choose to go back to them after up to you.
You also may want to wait till your second trimester as your skin and hormones are in overdrive your tans may turn out a little funky.
You can get a gorgeous tan though thru sunless and thats when you have a technician spray you. I have my clients wear a disposable mask till the end, I also use my Eco-cert. Organic DHA express glow. You have less time on the skin and lots of organic ingredients to replenish your skin.
So if your doing those beautiful pregnancy pictures keep that in mind, I did quite a few this summer and was soooo fun for me. Now if I could just get the pictures from the now new busy Mama's ;)
Cheers Mommies to be!