https://wccftech.com/windows-10-may-2019-update-is-now-available-for-all-those-seeking-it/

Microsoft has updated the support notes of the latest Windows 10 May 2019 Update aka version 1903. In the latest update, the Windows maker has noted that version 1903 is now available for anyone who seeks it through the Check for updates button.

Current status as of June 6, 2019: