SO being sneaky....

Okay before you all go ooohhh drama!!!! the only time that was available to finish prenatal testing and get another ultrasound to check babies position is on my birthday in the morning. My SO has been hinting at something he has planned for my birthday for almost a week and wants to stay home while I go to my appointment. He asked if I would be okay with him staying home with this mischevious look on his face. I'm one of those people that hates surprises because I want to know everything. I'm half looking forward to what he's been planning but also kinda want him at the appointment. am I weird for rather having him at the appointment than doing something for my birthday? I've never been the biggest on celebrating birthdays to begin with