white slimy cm

so I took a pregnancy test on February 1st, and it came back negative but I was supposed to start my period February 5th, in the morning when I wiped there was a very very light pink slimy cm so I figured I would still later on or today(February 6) but last night there was a good amount of white/clear slimy cm. Today(February 6) I woke up with light cramping so I thought I'd start my period but no just more white/clear slimy cm. What do you guys think this could be?