hi everyone.... sorry to ask another anoying question but....

ok im 8 dpo and iv got a discover hpt which is ment to be rather sensitive im trying so hard to wait untill at lest 10 dpo but im worried i will cave and do it tomorrow morning... will oneday make much diff?? how early has anyone alse had a bfp with a discover hpt??? i just know if its bfn ill be so dissapointed and regret having tested but i have no will power!