false positive?

When you get a BFP and misplace the test so a few days later you test and get several BFN ..... literally in tears. I had revealed my BFP to my hubby on Father's Day. I woke him up on FaceTime since he's away training as a US Marine right now. I said "happy Father's Day!! Guess who's going to be a daddy." He started bawling. We had a mc in January so it's been really hard...we were hoping for this to be our rainbow. We recommitted to ttc in march and we fly me out to see him perfectly timed for my ovulation. I thought we finally had good news. I literally feel so hopeless.