First thought when reading the title: "It'll probably be about just raising his kids and pose as a mother for them due to reasons, got time to kill so why not read for a bit?"
Then: "Oh, she's to actually birth them? That's pretty unusual seeing as there's no 'H' tag or anything, let's see where this goes.."
Last pages: *laughs* "Way to kill her expectations and mood-setting! Going to stay and read to see if there's more entertaining things in this now."