Confused! Someone help!

Christina
Ladies the day before my period was due I took a hpt. I thought it came out positive but later was convinced that I let it sit too long and had an evaporation line. I only thought that because the one I took the next morning read as a negative. Today I am going on my third day late and I took a clear blue digital test. It read pregnant but what is the likely hood it is wrong? I don't want to get my hopes up.