two days late?

Tiffany
So yesterday af was supposed to visit and my period is ALWAYS on time... however she didn't so I could t help but to get excited this morning when I went to ore and there was NO blood! I took my test (a day late) and it said negative (it was a digital) i normally work 3-11 but this weekend Saturday and Sunday I worked 11-7 my husband swears I'm just late because of my sleep pattern? Is he right? I'm so upset the test said negative! I was sure when I didn't get my period right on time that it would say positive...