That was right. If they could build a marriage on what little they had when they got married, then they could succeed with a child. She'd be there every step of the way, through the good and the bad and she'd help him. If not, she had her mother who'd try to help out and he had the Weasley family. That right there was proof that having kids wasn't so bad. They had a whole brood!
As he pulled her to him, she rested against him loosely, and smiled. "I'll help you," she said solemnly, smiling some more. "You'll make a really great father, Harry. I can tell."