Sudden weight gain question

Rachel

Hi moms! I’m currently 39+3 and weigh myself almost every day. Since 35 weeks I’ve been the same, 161-162 lbs. I weighed myself tonight and seemed to have jumped to 166.6 over the past few days. Wondering if this is something I should worry about? I have an appointment Wednesday but was wondering what you guys would do/ did do? Thanks!