You know, it really gives me no pleasure to say this, but I was massively underwhelmed with Pixie's pregnancy content, largely because it was one of the things I've been anticipating most.
I mean, I've said this before, but personally I can't see Pixie as anything other than the game's lead heroine- she's not only your constant companion and closest confidant, she's also the girl whose personal story arc is most-closely tied to your feelings for each other. It's only because you care for her that she gets to experience the joys of life as an individual (and nothing in this game is as heartwarming as Pixie when she's happy) as Morgana only considered her a tool, and all of her self-confidence and self-identity is tied to your love for her.
So I really thought it was disappointing how, well, throwaway her pregnancy and giving birth to your mutual child is. I didn't hear that Arc didn't want to do Pixie (if not, why were you able to fantasise about knocking her up since the very first version?), but it really does feel like it was only included as a token "yeah, you can do it, that's all". Apart from adding the "you think Pixie might be pregnant" fertilisation shot when you cum inside her, the entire thing can be summarised as "show up at Artifact's place, Pixie has a swollen belly, she goes off to give birth offscreen in the same scene, she comes back with a tiny baby and coos over it a bit, then the baby is packed off to Annie's place".
You'd think Pixie creating a new life with you, another being like herself to make her less alone in the world, would be treated as a bigger deal. Becoming a mother would be more proof that she's a person, not just a magically-created tool, and true evidence of how much you really do care for her. Instead it feels more like "oh that's neat". I get that it's not the main focus of the game, and making it more elaborate would be a lot of hard work (if she was able to be visibly pregnant outside of the current self-contained scene, the game would also have to make allowances for pregnant versions of almost every scene she appears in during chapter 2+). I just think it should be more in-depth than it is.
Whether or not Arc would add the option for boys is probably up to if people demand them however most 3D character generators generally prefer cute girls to guys (this is also why many games have the same defacto male protagonist with slight variation), since these characters are pre-rendered is likely the reason 1 child per mom as it mask the clone army slightly, and adding many variant kids would be way beyond the work Arc wants to put in for this.
