Not sure with my due date

Hello I am bombarded Kasi my LMP is May 23,2021. So supposedly last Feb 27 Yung due date ko. But based on my very first ultrasound, my edc is march 19, 2021. Kung sa lmp Po Ang pag babasehan, nasa 41 weeks napo ako ngayon. But if on ultrasound, nasa 38 to 39 weeks pa ako. I'm worried baka ma overdue na ako or magkakaroon ng complications and hindi ko ma monitor Ang movement and size ni baby. Saan ba Ang usually followed ? #advicepls Any recommendations and comments is highly appreciated.