Athome in NZ :
Pauline is right everything is waiting for you to download and install. I think you may be waiting for the mountain to come to you, but in the Microsoft world, this does not always happen, or at least not in the short term, only when Microsoft gets round to it. The only way to be sure you are up to date is to manually check through Settings/Update.
If you haven't already, download/install the first two (1903) items. When complete you may be shown additional updates(1903 and or 1909) or you need to check for these by clicking on 'Check for Updates'. Action any shown in the same way and you may finally be offered the Feature update (and you will notice this is already waiting in the wings -shown in blue). In practice you need to complete the Cumulative and other updates before you can download/install the Feature one. The Feature update normally needs to be manually activated although Microsoft may take the initiative if you take your time accepting. Remember the 'Feature' update (2004) is a major one and it will take time to complete, including a few reboots and a final install. Although you can continue using the device, best advice is to use another computer or get on with something else.
I hope the above is not too complicated for you and just try to check on updates at least once a week, and not wait for Microsoft to alert you it is time to reboot and install.