I'm so sorry for your very unexpected and untimely loss.
You have my deepest sympathies.
Even though you had Budgie for a short amount of time, I'm sure she knew she had a good home and was well loved.
Rest in peace, little Budgie. You were much loved and will be missed.
Maybe after some time has passed and you feel your heart has healed enough, you may consider getting another budgie friend to brighten your days.