Gross!

Rachael • I'm a 34 year old RN and mother of three (soon to be four). Kinda feel like a 1st time mom, since my youngest is 12!
So, because my life isn't complete without some form of stres: 
My 13 year old daughter got lice. Not sure where from, but she has it. And because we share a hairbrush (won't be doing that anymore) and she frequently watches tv in my room (using my pillow), I also have lice. 
So, is RID safe for pregnancy? 
This is our first real go round with lice, so, even though I learned about it briefly in nursing school, I'm pretty ignorant to the whole thing. 
Anyone with any advice, suggestion, helpful tips, I would greatly appreciate it.
Anyone who feels the need to be a jerk, more along. We aren't dirty, we wash out hair and clean our home.