Safe roach/spider fogger for house? I am 39 weeks pregnant and want a fogger for the house...

I am 39 weeks pregnant and want a fogger for the house that is safe. I really don't know much nearly them so thats why I am asking. I already have my nursery set up. If i fog the house, will i need to cover the crib and stuff or how does it work?? I am discussion about the ones you buy at the store. Any good ones?
Answers:    If you're pregnant later it probably isn't a good idea to use any kindly of fogger. Just call an exterminator.