Fortunately, it appears that they won't include Traylor's pregnancy in the show. They should just do more of those scenes where you see the back of Natalie's head while Monk is having another weird moment, aka the scene with Monk blowing his whistle and the bird calling back in "Mr. Monk and the Big Game". I'd be willing to bet that she and the other members of the cast are cracking up whenever they do that shot. I don't think Sharona could ever have been romantically involved with Monk, but I can definitely see Natalie doing it. It would be a great way to end the series, but only after he solves Trudy's murder.