Saving this test

So I've been saving this test since March of this year until I had a missed period.. This month I finally missed my period, took the test and just got my bfp.. I'm just worried the test is faulty since its been sitting in the box the whole time.

Also, I dreamed of this day but idk how happy I am.... I'm sure its because my emotions are everywhere right now...

What do you guys think ?