Measuring ahead

Hey all, I’m due December 12th but I’m also wanting to get my fall semester in school done so I can stay on track however, the semester ends Dec 13. This is my second pregnancy and my son is measuring a week ahead. Has anyone that measured a week ahead ended up going before their due date?!? I’m really hoping he stays in until then. I know it’s literally hit or miss. But just want input from anyone who has measured ahead and how it effected their due date. Thanks ladies!