When was it shipped? Order date doesn't matter. If it was shipped on Friday, you should get it by 7th or 8th depending on where you live and what warehouse it was shipped from. Mine usually get to my house a day before the UPS estimation if it's shipped from the east coast.
It was shipped on the 3rd, but still the 8th would be an extra day.
Also, from the 2nd to the 8th is 7 days.
2nd, 3rd, 4th, 5th, 6th, 7th, 8th
See, there's 7 dates there.