possible baby #2

so me and my husband decided to take a pregnancy test today as our patience was running veryyyy short, lolll. my period is suppose to start in two days. i took a pregnancy test this morning and a few days ago and they both were negative. i decided to get a “6 days sooner” 1st response test and it was positive with a faint line. we then decided to get a digital 6 days sooner clear blue and that one said “not pregnant”. am i testing too early or is there just not a faint line 😫 ?