Treating Fleas on dog/cat while pregnant

Em
Anyone have suggestions about treating fleas on our dogs and cat while pregnant? Our neighbors didn't mow for a bit and now we have a little flea issue going on. They get bathed regularly. Google says don't use harmful pesticides, drops on the dogs etc. But can't find any actual suggestions of what to do. Lol. Help!!!! Also, they can't really cause issues in pregnancy besides itching.. Right? Malaria but malaria in Missouri is probably not happening.....