I Agree on this, that there will be several scenarios. My take:I actually think Dimajio will make at least 3 distinctive pregnacy endings.
1. The baby is white (MC's).
2. The baby is black (Cornell's), but it's a cuck route so MC and Julia planned for Cornell to be the father.
3. The baby is black but MC is surprised because Julia cheated and lied to him
I'm sure there could be few other variations. Like, both MC and Julia are surprised that the baby is black because they were having threesomes with Cornell.
1) Baby is white (MC Dad). Faithful, sharing and maybe the less hard cuck path.
2) Baby is black (Cornell or Rufus Dad). Sharing and cuck paths. On sharing I think we get to choose who the Dad is. so both white (see above) and black possible.
3) Baby is black (Cornell Dad). On the cheat path, esp. possible if the MC has a romance with Jasmine.
4) Twins with superfecundation (one black, one white) as a little wink by Dimaijo on the sharing paths.