I'm so glad that the Glowing Crown of Government Paranoia is now a thing! all Isaac needs is a bit of tinfoil and it's complete! Can't be letting the men in suits hear you pee! (Also thanks so much to linking to my blog, I appreciate that- funnily enough I've also done the same for you in a recent update of OFftS for a reason that you will enjoy. Small hint- it's a homage to this challenge. XD
OH my gosh look at old man Erwin, bless him! I want to hug him so bad. I laughed at the reference to Isaac in the delivery room with an improvement book. Just casually quietly reading it periodically peering down like, 'Yo, is it out yet?' and the midwife understandably weirded out. XD The look on Lincoln's face when he feels the baby just said 'Oh HELL no, I am NOT doing this, ever!' ALSO my poor boi Erwin, RIP ;n; My heart actually broke knowing he's dead, you've made him such a lovable character for me. I hope there are no surveillance cameras in Sim Heaven! And just before the baby too...poor Isaac. Every screenshot of Isaac and Misty together is just adorable. I love the two of them together. Not gonna lie he looks hilarious in his third trimester in a space suit. Is the baby going to need a little helmet too?

Also the cute pic of the alien baby makes me realise just how amazing your new PC makes the graphics look!
I think that you've made a nice character choice with Isaac, the logical scientist, opening his mind to the potential spiritual world in the hopes that his father is watching him, bless him. Also the ending melted my heart! Yes, Isaac is still with us in ghost form! Best ghost grandaddy ever. Also I love your choice of name for the baby, Genesis is such a fitting name for the baby.
With your alien pregnancy headcanon- I remember at one point in TS4 a male Sim could get pregnant if he slept with a female alien? I think? I think they might have patched it , but either way ,I've always shared the same idea- since in TS4 all the Pollination Techs in my lineages seem to be female. I always imagine it'd be the same with an alien male as well. It's going to sound weird but I always imagine Sixamian females having some sort of ovipositor analog, like a wasp or something.