Period 12 days late

I was expecting my period on the first.. On the 5th I went to the bathroom and wiped and it was a small light red on the tissue so I thought it was coming.. It did not.. I’ve been very tired and STARVING.. I will feel like I haven’t ate at all for the day then think about everything I’ve eaten.. I took a test on the 10th and it was negative.. Monday I will officially be 2 weeks late.. My last period was December 1 before that it was October 23