Since you are only looking to lose about 40 pounds (I know, what's this "only" nonsense? It's all relative) you can expect to lose about 4 pounds somewhere in the first month. Given the variability in everyone's weight during the course of the day and from day to day, it might be hard to pick that out for you for another couple of weeks.

Be sure to take and track your body measurements as well, those are usually much better indicators of fat loss than the scale.

And even then, keep in mind that your body may well retain water in the emptying fat cells for a while. Very, very common.

Just relax, focus on the long term, and Keep the Faith.