I have a little girl too, but she went through it with flying colors. I know about being nervous because I could not even drop her off. My husband had to do it. I would have started crying and my little stressed Roxie ( who by the way hates the vets office) would had been more stressed out. She starts shaking as soon as she gets to the door. But she did just fine even when they told me she had the smallest uterus they had ever seen (not her-just her uterus for some reason).
He will home before you know it and doing the usual Yorkie stuff you love.