Most accurate hpt?

Sorry if this has been asked before but I was just wondering, in other women's experience, which is the most reliable and accurate hpt? My partner and I have been ttc and have been using ovulation strips, my AF is 2 days late now and I've been having some other pregnancy symptoms (possibly imagined lol). I picked up a 2 pack of hpts from dunnes yesterday, they were only €8 and I'd never heard of the brand before but they were the only ones they had in stock. Took 1 test last night which came up negative and another first thing this morning where I THOUGHT I saw a very faint line Is there a difference in accuracy with the cheaper tests? I've heard some crazy stories about the tesco own brand ones Gonna pick up another one today and try again but not sure what brand I should get....