Huh...I guess it's a glitch.

Did she have the baby yet?

I read this through again, and noticed that you said you opened and closed. Whether you mean the game or only the tribe, a lot of impossible things can happen when the game recalculates events that should have occurred during that time, like impossible ages. For instance, several children - not twins or triples - born to the same mother, or three chilren born to her in a four-year span.

So it probably isn't a glitch - it's probably due to the way the game 'simulates' game time that wasn't actually played. Many things appear to be estimated when this happens.