Importation question please?

Hi all. On the 5th December I got boots brand pregnancy test did the first test on the 5th at tea time. It said neg so I did the second test. 6th in the morning. I did the test right the control like had a dark straight line but the test window the straight line went cross the test window it was a straight line It was a light pink. I'm confused so I Waiting a week. Still no period I got another test yesterday both come back neg it was not the same test I got I'm I. Pregnant My last period was 20th October