AF Is late!

Stefanie
Well i was supposed to get a visit from Aunt Flow on the 21st and it is now the 28th and still nothing! If i don't get the visit by tomorrow I'll have missed my February period! How long should i wait to test after a missed period? I haven't had any spotting I've had some cramping... But nothing yet. Fingers crossed this would be #1 for my boyfriend and myself both!