My first try is a Concord grape wine. One week ago I followed a recipe for Concord grape wine. After a week it seems to be progressing but I learned that I should have added more sugar. The starting SG was only about 1.050. I think it should have been around 1.1. After a week it's down to 1.2. Is it too late to get it up to 1.1? What should it be now? Thanks for any help.