Agreed, full on death and guro is probably not a good fit for this sort of game. Especially as there's so many other erotic elements that can be introduced when she's alive and feeling everything.
Iris in Labyrinth (shown below) does pregnancy really well; there's the realization she's pregnant, then the slow buildup, then the full release. No need for guro when it's much more stimulating to see her experience everything--and then possibly go through it again if not careful.
Everything is born small--even the huge alien monsters would start out as small tentacle larva; if they crawl away, there's the subtle hint they may grow and return.
View attachment 1361695