pregnant or not?

this morning i took two hCG test strips (from amazon) & two first response tests that all clearly show two pink lines. i took a clearblue digital test that told me i am “not pregnant” & a first response digital that also told me “no -“. does anyone have experience with this? i am only 9 DPO so wondering if maybe i haven’t produced enough hormone yet for digital to detect? cracked both the digitals open & there are clearly two lines on both of those as well. attached a photo for visual purposes. thank you in advance!