Cheap pregnancy test

Cee • TTC with baby # 1.
So I originally wanted to go in a clinic , that I scheduled an appointment for , on Thursday. I told my boyfriend that my period was late Sunday! Bad idea! He's been so anxious to confirm this! Anyway today I purchased a dollar store pregnancy test & it came out negative. I told him the test was negative , I even kept it to show him . He said I bought a cheap test , and it wasn't accurate. I believe that it's accurate , and why should I buy an expensive text only to get my heart broken with a negative ? :( anyway do any of you girls think the dollar store PT are no good?