Well done getting this far!
In the first month and half you will lose the most and after that it settles down and will work out over time to about 3 to 5 weekly...some weeks you might lose a lot less and others a lot more and you will have weeks where it stay the same but it averages out over time... and then as you get near to a healthy BMI it slows down and is normally a good indication to think about refeeding.
Everyone is unique to how the weight comes off but you will soon see your own pattern.