Has anyone thought they were pregnant and went to the doctor's and got a negative result, but really were pregnant?

I’m just curious if this has happened. I’m 2 weeks late, with some pregnancy syptoms (nausea, headaches, tired, crampy, etc). I DID go to the dr, but it was negative. Still no period. I know stress can make it late, or just make you miss it. But, I was just wanting to know if anyone has had this problem and they really were pregnant. And please, no one say “go back to the dr”. I will be going if it still doesn’t come, I just want to see if this has happen. (And I did get a negative home test also) Just want to know if it is possible