Letting ur young children see real birth videos?

Mary • 27, from Utah, I have one 2 yr old son and a baby on the way!
So I have a 2 yr old son, and my daughter is due in 2 months. I've been trying to prepare my son for what's about to happen, and so far that's just consisted of me telling him there is a baby in my belly.. and he will point to my belly and say "baby sister" and he will kiss my tummy & stuff, so it's like he kinda gets it, but he's probably just repeating things I've said.. I doubt he truely understands there is litterally a baby in there that will come out soon. So I checked youtube for any very simple vids for tiny kids, that maybe just kinda act out what's gonna happen, but supprisingly they don't have any for toddlers!! All they have are real birth videos! And in my opinion those are just much too graphic for a 2 yr old.. I dont wanna scare him with the blood & screaming and all that. I was just hoping for a simple animated video or something along those lines, not showing actual drawings of the vagina, but just showing the basics.. the big belly has a baby in it, baby comes out, and belly goes flat again. Does anyone know of any videos like this?? And if not.. do u guys agree a real birth is too graphic for real young kids or do u think its fine??