Help!!

I’m currently 9 days late, yesterday I had a slightly positive hpt so I went to the doctor and their test was negative, I done another hpt this morning and that was negative too!! What is going on?? Ive been feeling very tired recently, my boobs hurt and are swollen, I’ve been getting a lot of headaches, I’ve gone right off my food, my moods are terribly up and down and the nausea feeling...oh my gosh the nausea feeling is torture!! To the point I want to make myself sick just to get rid of the feeling!! Can anyone help? Has anyone been through the same thing? I have an ultrasound booked for next Wednesday to see what’s going on but the anxiety of waiting a week is getting too much 😔