I need some advice and some prayers!

Hello all! I might be freaking out, but I need some advice. My husband and I have been TTC for about 6 months, AF is 7 days late, 2 days ago I took a HPT and got a BFN. I tried to make a doc appointment but flaked last minute because I'm too scared to get an official BFN..... I'm not any more stressed than normal and absolutely nothing has changed in my diet, exercise, or daily routine. Am I paranoid? Or is there really a chance I'm pregnant? Someone send me some baby dust!!!