Hello, I was supposed to start my menstural cycle on 2/3/15 and it would of ended on 2/7/15, I ve had regualar periods ever since the birth of my daughter 3 years ago, not sure why this period would be late, I was sick with the flu and had cold right before I was supposed to start my period on 1/31/15 and I was sick for 4 days. I took home first response pregnancy test but it came back negative I m confused.