No PERIOD!? - Blood Test?

No period.

Got a blood test done yesterday, my period was suppose to come 12/11- and it was negative.

My boobs are full and sometimes achey.

My gums were a little swollen, and my CM hasn’t completely dried yet which it normally does before af or spot. Now feeling like I might be getting a cold.

I’m so confused, I know it could be hormones. I have PCOS, but my period is 1-3 MAYBE 4/5 late at the absolute most.

The last time I was pregnant, I was 2 or 3 days late on my period and they barely caught it with a blood test. I was so early. My hcg level was at a 3, they almost didn’t consider it positive.

I’m just wondering if it could be to early. Has anyone had a false negative blood test?!