I'm late

My period is 4 days late.

My bf n I have unprotected sex... We have for about a year (stupid) but it os what it is.... He also came inside me atleast 2 times since end of April... Should I take a cheap test. Or

Wait longer..

****update. Bought Walmart.88 cent test so we shall see.... ***

(It said negative) but still no period. Dammit. I'm more confused than ever.