Taken pregnancy test but negative

I know that there a women out there in my shoes or have at least been before. About 6-7 days ago I started recieving pregnancy symptoms, starting from nausea without vomiting, constipation, mood swings (majorly), fatigue, cramps, back pain, dizziness, CRAVINGS, bloating, head aches,and just feeling pregnant. I went to the doctor today and the test came up negative so I’ve now been sent to do a second blood test. Conception date would have been around the 12th Dec, and I believe I was spotting for 4 days on the 16th, usually my periods are so heavy I change super tampons every few hours. So something’s off. And I even asked my doctor if I could just be having these symptoms because I want a baby and she said it’s not normal and she hasn’t heard of it.

Maybe I’m just too early to tell and am unlucky to get everything sooner. But I know I’m pregnant. And so does my partner. I’ve never been so sure. Any one relate? Or has anyone had this and ended up pregnant. Please respond! X