Hpt negative, Dr positive

Kayla
So before I got my missed period I had a hunch I was pregnant with baby #2. I kept taking tests (dollar store) and it would be a bfn until awhile later and a thin line would show. So I took 2 clear blue on thw day of and after my missed period and those were both bfn. I went to the Dr to see and they told me my results were positive. So I took another test this morning with fmu and a bfn. I'm so confused?!