Back to school....

Going back to work today, and am hoping that the distractions of a busy day will make it easier for me to stick to my diet. Aiming to have a nice Pizza Express pizza for tea to celebrate 7 months with the bf :) Just realised I'm away the Monday after next when my weigh in is supposed to be and am wondering how to work around it, do I just not weigh myself at all that week and hope for the best?