14 DPO HELP

MJ • 28 y/o TTC #1 since 09/2019

I need your help guys..today is supposed to be my first day of AF according to <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a> but still nothing. I have regular cycle. Should I test now or wait until next week? Im just so afraid of BFN huhu it’s so heartbreaking to get negative😞