am i over analyzing things?

my period is always a little unpredictable. but one thing I can count on is my migraine a couple days before my period starts. I had a migraine 3 days ago and so far no period and I've been sick to my stomach every time I eat. my cm was clear and sticky, but now I'm dry.. I have no idea and don't want to get my hopes up.

update: my period is 5 days late and I had a really bad headache last night which never happens! like I said, I only get headaches and migraines like a day or 2 before my period.. cm is creamy now... and I get really nauseous whenever I eat anything..