To tell or not to tell

DH and I lost our baby in September at 11 weeks gestation, and I just got a faint positive today. We’re visiting his parents in Florida next week and we’re going to Disney world with his mom and our 19mo. I really want to tell her we’re pregnant at WDW, but my husband wants to wait as long as possible before we tell anyone. If we weren’t at the most magical place on earth, I wouldn’t hesitate to wait either, but being at WDW, its hard to refrain from dreaming about posing for a pic with Mickey and holding up a “Rainbow Baby” onsie, which I already do have. 😳🤷🏻‍♀️ I’m going in to my OB tomorrow for blood work and to get my levels checked, so there will be some solid confirmation beforehand.

I completely agree it’s best to wait to tell anyone to spare them from getting their hopes up, but at the same time, I know they’d want to know and be there with us for the journey. Plus it’s just so hard to pass up the opportunity to tell them in person. What would you want to do if you were in this situation?