Day after Mother's Day

So I went camping over the weekend with my husband, our daughter, my father and his wife. And just as we got to the campsite it occurred to me that my period is suppose to start soon so I check my app, and freak out because I didn't come prepared for shark week 😭 
I told my husband and he reassured me he would get some, it's fine. 
So we went on camping and having fun. Finally Mother's Day came around (our last day camping) ⛺️ 
And I still had no period, I wasn't concerned I was actually pretty happy with my body for holding off until I got home (because let's be honest camping on your period sucks!) but I get home, go to bed all that. Wake up still no period. 🤷🏻‍♀️
By this time my husband already jumps in the car to buy the test. We have guest over, and I told him to hide the test (which he didn't do so well,) 
Long story short it came back positive! I haven't told anyone but my husband yet, I really want to get a test done at my appointment. (My husband is dying to tell everyone) lol so if you guys have any ideas on how to make sure he keeps it a secret, or if you have any ideas on how we should tell everyone that would be greatly appreciated!