No period

Theresa

So I’m currently 3 days late for my period. Been having slight cramps on my left side and feeling sick still no sign of period. I took test days before this they looked negative I took this today but it showed up at least 10-11 minutes after I took it so I’m not sure if I can trust it or not and I’m not sure if it’s a positive. My cycle is 33 days long and luteal phase is 11 days long. Please give any advice or thoughts.