Fleas!!

Samantha
Help! Our house has fleas because of our dog. My husband has used the powder for the carpets, gave the dog a flea bath... Twice and has used treatment medicine on the dogs back twice. And yet there are still fleas everywhere! I'm about to go nuts! This is my first pregnancy and I'm scared to flea bomb the house... Is it safe? Or are there other ways to go about it? Thank you!!