she did care for her first child but after she gets a relationship with Souvieshu and eventually becomes the empress, she starts feeling that the first child will be a problem for her second child bec the first child is just a noble while the second child is "part" of the royal family (more to this later on but I won't spoil unless asked). She still does her best to provide plus she at this point of the story, she doesn't want Souvieshu to learn about her past and the viscount is threatening to reveal her secret baby if she doesn't provide "support." In a way, she is still caring for her first child while finding ways not to reveal her past.