i have only ever used the first response tests and found them good.
with jack, i tested the day before AF due and got a BFN, then forgot about it til 2wks later and still no AF
with charli, we started TTC 10 jan and got my BFP 24th jan

although it was a very faint line
if you can, it's best to wait. but if you can't (and we all know how hard that is!) get the 3pkt tests at supermarket as they are cheap and if the first one is BFN you have a couple more up your sleeve to use later.