Lmao, my condolences, I fully understand your suffering since I've made 10+ deepone pregnancy attempts with all of them ending in failure (it was either a normal moot/human or a fishkind baby, never deepone) I gave up multiple times and came back again some other times, and when I finally got the predeepone (looks human, but you can select smelly human in rebirth option) I swore to never do another deepone pregnancy attempt again, the process was the most painful experience I've had in the entire game, birthing the 4 abomination babies were far far faaar easier. So all I can say as a suggestion is, you gotta push until RNG gets on your side.All the attempts I have made to be reborn as a deepone, I got pregnant 6 times with a deepone in the temple of the sea witch and from the 6 pregnancies I have had 6 fishkind babies, in addition to an old save from 0.7 that I had many babies with the fishkind and I only got fishkind babies, neither human nor anything, am I a bug?
Though if you want my personal opinion, Deepone race, at least at the moment, really isn't worth all those painful attempts, Abomination race is by far no contest better that it even beats Deepone in what it's supposed to excel, which is Succubus build.