Uy, mama, importante talaga yan, please ask your OB to explain what that question mark means, kasi dapat clear ang dating ng huling period mo para sa accurate dating ng pregnancy mo. It could mean different things, at kailangan ninyong i-clarify together para sure kayo sa due date at monitoring ng baby. Hindi ka nag-aalala lang, pero pati ang doctor mo dapat confident sa timeline, kaya don't hesitate to ask questions sa next visit mo, ha!