Has anyone experienced heavy implantation bleeding with pregnancy? Someone please help me out

My periods have always been weird and irregular. I had a "period" a couple weeks ago, but it was really weird. It was really light for 3 days then it was heavier and the day after that I swear to you I thought I was dying. I told my husband to put a bullet in my head to stop the pain.

Fast forward to this week: I assume it is all ovulation, but I have NEVER had ovulation symptoms.

But I've had nausea, mood swings, loss of appetite, food aversion, very mild cramping, EWCM, vivid dreams, headaches, and extreme tiredness

I swear it just seems like I'm pregnant....