pregnancy tests and spotting

mummytobe3

Hey, I have been bleeding for the past day and night but not overly heavy just a drop, I have been testing every morning and getting BFPs which reassure me however I done a £1 store test this morning and it was a BFN so I done a First Response test and got two strong lines. Should I just ignore the £1 store test and put it down to a dud as I still had a strong positive x