Hello. My Last Period Was April 24-28. I Had Unprotected

Hello. My last period was April 24-28. I had unprotected sex on May 5 during my fertile days and ovulation. I am currently 6 days late and there is only 3 days left in this month. All pregnancy test have come back negative. I've always been normal. I been very nauseous and vomiting. I have had hot flashes and night sweats. Everything I eat comes up. I also have gas and alight cramping. I also have a milky white discharge with no odor and no itching. I have no infection. Went to the doctor when I was a day late.