Turns out elven pregnancies lasted years, and that was long enough for you to get to experience what Christian was worried about. In terms of the schooling system you would be put in the toddler class who were very much ahead of you in terms of education. Was interesting seeing a bunch of little kids learning about Calc 3... Although since you were committed to the ritual of motherhood they decided that going to school would be a waste of time and effort.
You were trusted enough to go out and get food by yourself at a restaurant, but even when just chit chatting with elves who looked your age... Well they shortly after starting talking to you started to treat you like a little kid considering how little you knew. They were all pretty but all the elves were looking down on you. Although there was a tween looking elf girl named Clacia who was a little curious.
"So... Christian's going to be having a kid soon, and then will be having you? Sounds like I'll be able to babysit you at some point soon then." During the years you were waiting to do the ritual you were annoyed that Clacia would keep treating you like some kid brother even as you aged into an adult into the prime of his life and she grew into a training bra.
Your father who had been successfully turned into an elf was spending a lot more time with Christian trying to learn magic and other elf customs. So the one connection you had with your old life was off spending most of his time catching up with others of "his age". Too bad you couldn't even approach magic since humans didn't have the aptitude. You ended up secluding yourself since you generally didn't want to hang around the toddlers... and everyone older just babied you... Although Clacia seemed a little interested in you... although more as an oddity and it's not like you'd ever lust after her. You'd probably be an old geezer by the time her boobs were anywhere near Christian's size.
The one thing you did prepare for the Ritual was eat a lot of memory enhancing herbs. You had no idea if it would actually work, but you wanted to preserve as much of yourself as you could. You also tried meditating and whatnot to strengthen your inner soul or whatever. You had no idea if any of this would work or not, but you figured you may as well try to retain yourself through the ritual. Then out popped your half-brother Stezian. A little baby who took long enough to get out, and open a room in Christian's womb for someone else. It took a little while for Christian to recover enough before she could do the ritual of motherhood, and Clacia was hired as a bit of a babysitter and tutor for your father. It felt embarrassing... but then Christian had enough strength to do the Ritual and you would finally be able to have an actual life!
Christian, your father, and yourself were in a dark room with a magic circle and a bunch of old looking elves chanting some incantation. Your father and Christian started to glow a bit selecting who the father and mother was in the ritual, and then you started to feel a little uncomfortable as your body started to heat up and glow until... Well darkness as your old body died and your soul was brought into Christian's womb where a soulless zygote had just formed. It would take several more years till you were born as...