@NecessaryScene
It just means to ring and tell them you’re pregnant.
Does it? Then why don't they say that?
Can't they speak normal English, rather than weird jargon?
It makes it sound like they're not really bothered about whether you ARE pregnant or not, but I suspect the intent is that you are supposed to be.
(Similarly for stuff I've seen from Canada about posts for people who "self-identify" as "indigenous". It makes it sound as if it wouldn't matter if you really weren't, but I suspect it would. In which case what are they trying to obfuscate? Why can't they use the basic verb "is/are/to be" that everyone understands?)
The reason for this is that not all native people in Canada have official status. Which you need to have for certain things, often related to taxation.
If you don't, you may still have native heritage which may be relevant for certain situations.
That being said, it has opened up certain areas to people whose claims are questionable or who probably aren't really the intended beneficiaries of certain programs. I knew an academic for example who had some native ancestry, but he didn't have any real relationship with the culture of that part of his family, but was hired for a post where they were giving preference to people with that background as part of a diversity initiative. He was quite open about the fact that he was using it mainly to give him another advantage in the application (maybe not to the people doing the hiring, though.)
But I agree that when we are so used to self-identification being used in cases where it's counter-factual it seems to weird to hear it in these other instances.
In terms of the use about being pregnant, it almost just sounds like jargon - they've replaces a simple phrase with one that sounds trendy.