I know we didn't get a confirmation but for Isayama to put Historia's line "How about i bear a child" right in the middle of that conversation about potential romance with Mikasa. . . . if this isn't super extra obvious ship baiting by the author. . . . I hope he's at least going to confirm who's the father in the end and not just leave it unanswered and ambiguous.
@nomadicengi We don't know why she's pregnant, it didn't apparently serve any purpose to Eren's plan except as an extra safety precaution for Historia from the Military Police who wanted to turn her into a titan and feed Zeke to her, but for that Zeke and and Yelena already had prepared their poisoned wine strategy to control them. We simply still lack a piece of the flashback, Historia's line about bearing a child was in a separate instance from the previous conversation with Eren, we still lack the context she was talking about.
Also, the rumbling panels were absolutely fucking awesome. Eren's final form is otherworldly insane. And notice in the final panel how his ribcage and arms are tied to the Founding Titan's spine like a marionette. It almost seems like, although he believes these actions are from his own free will, he was being controlled all along by "something".
On That Day, Humanity Received a Grim Reminder.