Best photo sharing platform?

Sasha
I'm looking for a way to share photos of my July 2017 baby with family and friends. 
Currently the only thing I use is Facebook, and I don't want to turn my Facebook into Baby Central. I'd like to find some other platform that I can use to post baby photos, updates, and maybe videos. And then only the family and friends who are specifically wanting lots of baby info can access it when they want to.
Ideally, my perfect platform would be 
-free,
-able to be viewed by family members without them having to make an account,
-allowing text updates as well as pictures,
-if possible, password protected.
So I'd give family a link and a password, and they'd follow or bookmark the link, and it would prompt them for the password, and then they'd be able to see the baby photos and updates I'd been posting. 
Anyone have any suggestions? It could be a platform designed for sharing kid photos, or just one of the normal social media platforms. Parents, what's worked for you? Social media savvy people, can you think of anything that fits my needs?
Thank you!!