Anybody got negatives before period even with early detection tests?

andria

And ended up being positive after missed period? According to glow my period is due wed.. i took a clear blue test & two of them were faint lines ( picture belw) then I had a digital & it was negative. So I went to the doctor and they did a urine and blood test, both negative. Could I possibly still be pregnant? Even tho these tests were early?