When I was 6 weeks pregnant the Doctor seen my baby it look like a small black dot.... But it also can just be tooo early! Good Luck!
Dont worry
6 weeks is pretty early to be able to see anything. I wouldn't worry. I had an ectopic in December. The tube ruptured, massive hemorrhaging, almost died. Lost that tube and the ovary along with the baby. I got pregnant sometime in April. Don't worry. You're alright. Just give it time and watch for symptoms of another ectopic since having one makes us more likely to have another.