Truthfully, Lavender didn't mind waiting to see Zach. She understood that he was busy, she didn't expect him to make time for her at the drop of a hat! Still, she was excited to see him, though. They had so much to talk about and most of it positive, though she was feeling a hint of guilt at what she was going to say in response to his proposal.
Since she couldn't apparate, and she didn't want to take the Floo today, Lavender took the Knight Bus to Zach's place and headed up to his door when she arrived. Knocking, she called out, "Zach! It's your two favorite people in the whole world!" Her hand rested on her belly as she said it, and she laughed after.