Need suggestions please :)

Riss • 29 • Happily married • Mommy to a 2 y/o boy and had our 2nd boy on 4/16 💕
I'm now 13 DPO and AF was due today... Nothing yet! Usually I'm on time! I tested at 9 DPO and got a BFN... Should I test in the morning or wait longer?? I'm dying to know but don't wanna waste a test either lol they're expensive!