Simple Suggestion:

Update the current system to make it so that a 'Nesting Warning' shows at the top of dens when Lionesses are on their final day of pregnancy - one that doesn't go away until everyone applicable is nested, just like how it works with starving Lions and Beetles.

Maybe something like...
'This den has (NUMBER) lionesses on their final day of pregnancy who currently don't have a nest - the cubs may not survive!'

That is all

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I've been informed that this is a repeat suggestion ( thank you Infinightive#177615 ) !

01: 2020 Thread by Enjolras (#189510)
The one with the most supports on it ( currently 1000+ ) is from way back in 2020, which is disheartening to say the least since it still hasn't been implemented.

02: Upon searching more, I also found one from 2023 that looks like it wasn't bumped/advertised very much ( only 5 supports currently ). I won't link that one though, since the user seems to have left the game since then.
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I've decided I'm going to keep mine open for now to bring more attention to the idea, and hopefully catch the notice of the devs this time around! Thank you all for all of your support so far