Spotted for 24 hours, then stopped? Due in three days!

Hello, ladies! Need some reassurance. I've (23F) been menstruating for 15 years and have never spotted. It started Thursday night, then carried into yesterday night. Completely gone by this morning. My period's due in three days. Could this indicate a hormonal imbalance? My period was seven days late last month, too. I'm usually like clockwork 🥲