Why am I feeling everything so early, is my due date off?

Most likely cause your petite. How much did you weigh before pregnancy? I am 5'4 and prepregnancy 104lbs, i felt flutters at 11 weeks and kicks at 16 weeks, and by 17 weeks i could feel the kicks with my hand and see them.. I felt my baby have hiccups at 21w 4d. By 22 weeks i had gained 6lbs, i am now 32 weeks and have gained 15lbs so far. You don't sound too off, so i'm pretty sure your due date is right.