Am I Pregnant?

So my period was 4 days late which is not normal for me, so I told my SO and he got me the clear blue digital test...I took one the same day and it said "not pregnant" then next day I took the second one and it said "pregnant" but right after I taken it I started spotting. So I gotten two of the cheap ones & both of those had two pink lines. So am I pregnant? Is spotting normal? Or is this just my period and it's effecting the pregnancy test because I'm on my cycle?