I too misread and thought it was HER father at first - makes much more sense as the baby's father!
This is the process with a new baby that many people really don't understand if they haven't been there: we're designed to protect that baby from when we first find out about them. We can overcome the design by various methods, but it's our basic nature.
Haha, oops. 50 words is really tight and I only had the one word to denote who's father was the bad guy. Easy to misread I guess.
Hey, I'm impressed with the brevity. That's my biggest challenge in writing anything - apparently I'm not naturally gifted with the soul of wit.