period late

Kaitlyn β€’ mom to the sweetest baby girl and another on the way πŸ‘ΆπŸΌπŸ’•πŸ‘ΆπŸΌπŸŽ€
my period was due last Wednesday, and I still haven't started (Sunday). I took a test the first and second days after my missed period and they were both negative. when should I test again?