Board Thread:Show-Related Questions and Answers/@comment-61573-20160608203418/@comment-61573-20160608210524

Well, at least she wasn't walking around holding a large bag in front of her the whole time. I've seen that often enough in television to know they are trying to hide a rather obvious pregnancy. ;)

They still could have used her dragon CGI model though, as I assume that doesn't require the presence of the actual actress. Just have someone say "Hey, it's Lily" and you get the idea that it's her, not her mother.