Neg on cheap strips blazing positive FRER?

Meg • Rainbow baby due December 2018 ❤️

Has any of you ladies gotten negatives on cheaper pregnancy test strips but tested with first response & got a blazing positive?? I’m currently 9DPO & having all the symptoms like my last pregnancy. Last pregnancy got a faint line not until day after missed period on cheap strips....wondering if I can get sooner results on first response. What are your experiences?