safe to drink during implantation? please answer

I am not sure what's going on with my body. I never spot. my period is very regular and I started having brown discharge and light blood, including cramping, almost a week & a half before I was supposed to start. everything I've read has told me it sounds like implantation. does anyone think it might not be? & i am maybe on my third day of having the weird discharge/light blood and still have a little more than a week until I am supposed to start. if I were to drink not too heavily tonight, would it be safe? help please