Well done on 17 days, Suziequeue!
As far as the weight goes - everyone's body is different, so it depends. Alcohol obviously contains a lot of empty calories, so once a person discontinues drinking, those are eliminated. However, there are other factors that could determine if and when a person will lose weight.
From my experience, it helps to replace all those empty calories with good, healthy foods (fresh veggies/greens, fruits, whole grains, etc.), and get regular exercise. There are a ton of benefits to be gained.
Good luck to you!