Need help

Elise🌈♥️
I've been documenting my period and ovulation since last June. Every month since then, I've started my period 12 days past my last day of ovulation. According to the <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> i always use and has always been right, I'm 3 days late. According to Glow, I'm not suppose to start until tomorrow. I tested last night and got this. Has it taken anyone a little while after their missed period to get a BFP and if so, how long?