Push Up Pyramid!

Set 1 - 1 Push Up
Set 2 - 2
Set 3 - 3
Set 4 - 4
Set 5 - 5
Set 6 - 6
Set 7 - 7
Set 8 - 7
Set 9 - 6
Set 10 - 5
Set 11 - 4
Set 12 - 3
Set 13 - 2
Set 14 - 1

Starts off easy but doesn't stay that way!