Help! Is there a way to stop people from saving your pictures on Facebook?

So I have family that lives 1,500 miles away so I mainly use Facebook to share pictures of my 2 year old (who was born here) so that way everyone sees it at once instead of having to send every picture to family members one at a time.

I have my Facebook locked down so people who I’m not friends with can’t see her pictures.

I have told my mom since the moment I found out I was pregnant that I did not want this certain family member having anything to do with me or my child for reasons I’d rather not go into. Let’s just say it’s a safety concern for me & my daughter.

Well I’ve caught my mother showing this particular family member pictures of my daughter that she’s saving off of my Facebook. She’ll slip up & say, “____ said that shirt is really cute on (insert my daughters name).” I’ve told her I don’t even know how many times not to involve this person but of course she doesn’t listen.

Is there like a privacy setting for this? I know screenshotting is a thing but if I can’t find out how to stop her from showing this person than I’m just going to have to block my mom & cut her out completely.

I am terrified of what this person is doing with my daughters pictures. I have told my mother this & she just won’t listen to me.

I don’t know what else to do.