False Positive :-(

My heart is broken. I thought I finally got my BFP this morning. Even posted a picture of my hpt on here and everyone agreed. I just went to the bathroom to find that I'm bleeding like I've started my period :-( I'm so upset I really thought I had it this time.. My husband was so excited when I told him about the BFP idk how I'm going to tell him it's not happening.