One possibility could be that it would completely change the power dynamic between them. Xena, being a strong and independent warrior, might struggle with the idea of being vulnerable due to the pregnancy. Ares, on the other hand, might see this as an opportunity to have more influence over her. He could either try to protect her in his own way, which might involve more aggression towards her enemies, or he could try to use the situation to manipulate her into doing his bidding. However, Xena would most likely resist any form of manipulation and strive to maintain her own agency even while pregnant.
Definitely. The comic version of Homelander is portrayed as having greater strength and capabilities. This is evident in his confrontations and the scale of his power displays throughout the comic series.