I'll save you the trouble of reading the studies. Don't swallow your toothpaste, and consider using a fluoride-free toothpaste while pregnant. Also, its pretty hard to argue that children need any sort of fluoride for dental health before their first adult teeth come in. Those teeth are going to fall out anyway, and they don't need the chemical help during the first 6 years of life as long as they brush properly.
Symptoms and effects of a calcified pineal gland are highly debated, but best case you could aid in healthy brain development in the womb and in early childhood, as well as aid in spacial reasoning and visual imagination.
If you're an adult male with no young kids, its probably makes no difference, so carry on.
If you don't mind the taste of iodine, I like the Superblue line for toothpaste/mouthwash. If you brush and floss regularly, there is really no need at all for any fluoride in your life.
Pretty much, but at least soap doesn't calcify the pineal gland.