Pregnant? Maybe?

So guys I’m late by 8 days and all of my tests are still showing negatives. I’m not really stressing it because this was our first month trying so I wasn’t expecting to get pregnant but now I’m just confused as to why I don’t have it and I’m still showing negatives. I’ve only taken dollar store tests & was curious as to whether or not I should get a different type of test ( Clearblue, e.p.t, first response, one step, etc...) any help would be great 💕