Who's the Alamaine in Salem?

Thinking that Mia is Carly's daughter seems too easy. I wondered if maybe Nicholas is a daddy already and Carly is looking for a grandchild instead of a son/daughter.  But we're short on children in the story line... at least at the moment anyway.  Carly meeting Mia at the dock just seemed too contrived... but, maybe Vivian knows more than we think she knows.  Does ole' Viv want to 'off' Carly again so Carly won't realize that ... speculation here... maybe.... the Lawrence who died wasn't the real Lawrence ?? Looking forward to Caroline's jealousy when she sees Vivian flirt with Victor.  Whooo hoo!