I'm going to test tonight...wish me luck

Danielle • TTC baby number 1 for 3 years now...
So I am now 7 days late for my AF and still too scared to test and convincing myself that AF is on its way with cramps but no spotting/bleeding yet.I haven't had any other symptoms which is making me wary of testing...do you think I should go for it tonight?i just don't want to see another negative...