Nal, it usually takes me a few days after I do a takeoff to see the results, but I didn't start the LAWL program with a takeoff, so not speaking for when you first start the program. For everyone it is different.
It will take your body a few days to adjust to eating the way you are now, and for your water levels to sort themselves out. I am sure within a few days you will see a difference and be pleased
Good luck with the plan, and welcome