Moisturizers?!

Christina
Hello mommas! 
I haven't started showing yet, but I wanted to get an idea of what products work best as far as keeping your skin hydrated.. I am terrified of stretch marks.. (I already have some from rapid weight gain in the past) I of course will wear my baby bearing stretch marks proudly if they do happen.. But it doesn't hurt to try to prevent them right? 
What would you ladies recommend?