"No, the meat should be fine. I accidentally cut into the intestines as well from time to time, it just happens. just make sure you wash the cavity out really well with a hose after field dressing. Good luck to you"
I'll second that . . . Knicked the intestines on the last buck I dressed. Propped him up against a low brick wall and washed his 'innards' out for several minutes when done. You should be just fine.