Should I tell him?

Ok so here's the thing I've been getting positives on line test all week, and all my digitals say not pregnant. I've already hold blood work I just have to wait until Monday for the results. My question is do you think it's safe to tell my dad today it's his birthday and we want to give him this. But not if something's wrong. I'll post pictures of the gift and of my test down below please give me your opinions because idk what to do 😒

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