Any ideas?

I’m 6 days late to my period, I didn’t track when my ovulation was this cycle cause we’ve been trying and trying for months so we were taking a break for a month or two before hoping back into things. I have extremely bad headaches and migraines, My discharge has been either extremely watery where I feel like I need to pee , or watery and cloudy. I get random waves of nausea, and cramping and sharp pains in the left side of my uterus. I also have been getting chills or goose bumps out of no where ( for example I was waiting for my friend and I was in the car windows down in 100 degree heat with goosebumps and cold.) but my boobs aren’t sore or extremely tender so I’m confused if this is just a very late PMS or early stages

So if anyone has any ideas what this could be that would help tremendously :)