first off fb wasnt really a thing when i got engaged. i did announce it on myspace but at the time i really only had friends and aquaintances on there so it was no biggie. even now that im exclusively on fb, i still only have a few family members.
2nd tho, all of dougs family was with us when we got engaged so no worries would have been there! and my moms side of the family is sort of computer illiterate so haha, no one rally would have known.