Save replaced with different family

I have been playing the same family for quite a few months now, just going from generation to generation. I clicked save as on accident, then did "save and exit" to be safe. I opened the game again a couple hours later and the photo of my family comes up in the menu, but when I click to play on it, it brings up a completely different family. The family name in the save on the menu is incorrect as well, but the image is right.