What tests

Mary
So 7 years ago I was ttc#2 and I used the same hpt that I am using now. At that time seemed like every one used them cause you could get your BFP early. However now I have read that you have to be a day late to get BFP. I will add a pic of the ones I have. 
What do you think are the best to get an early BFP (8/9/10 dpo)?
Also do you know how find out how sensitive a hpt is? 
Thanks for your help :)

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