Praying for our rainbow baby

Liza • 👶 5/5/16 👼 8/15/18 👶🏻🌈 due 12/15/19

Hi! So, AF was due today- so far she hasn’t shown up- crossing my fingers for a BFP- I took a pregnancy test today -(vvfl) and the digital read as negative! What should I do? Should I try testing again tomorrow