L8 or Pregnant?

I had unprotected sex on the 3rd of November and my cycle came on on the 5th but it was like egg whites & not the normal period cervix tissue. I use the diva cup so I am always examining what’s settled in it when I empty it... Cycle lasted normally for the 4 days, but minimum pain during. Now my cycle was supposed to come on Last Friday; I had no ovulating symptoms, no cramps, no bloating, no headaches, no signs of a period coming. I took a test 2 mornings straight & they were both negative. Mind you, my period comes on time every month 😩 HELP