This was a kit a Brewers best american pale wheat (this was my first attempt at brewing). So my OG should have been between 1.058-1.062 mine was 1.050. The FG ranges at 1.009-1.012 mine was at 1.020. Which gives me a 3.94% abv. Temps taken between 64'f and 72'f. I switched over to my 2nd stage fermenting which this kit calls for but I am reading a lot that this should and can be avoided. This is when I was told to take my FG reading which came out low. Now I still have about 2 weeks until I bottle but Its saying I should have my abv at 6.25-6.75% at this point.
So I'm assuming your kit used extracts. How many days was your beer in primary before you tested your gravity? I'm assuming you topped off water with this kit, when you did, did you ensure you didn't go over desired volume? Did you stir your worry before taking an OG sample? If you didn't stir your wort, it was higher than 60*F and/or you added more water than it called for, your OG could be of by that much.