In the fanfiction, Harry's relationship with Snape himself would of course be very different. When Snape grows up, he might have a different view of Harry. Since Harry took care of him as a baby, there could be an underlying sense of gratitude, although Snape might not show it openly. And Harry, having seen Snape as a vulnerable baby, might have more empathy for him in their later interactions, which could change the whole dynamic of their relationship compared to what we see in the original books.
Well, in such a fanfiction, it could greatly change the storyline. Snape is often portrayed as a complex and somewhat bitter character in the original story. But if he takes care of baby Harry, he might develop a different kind of bond with him. Maybe he'd become more protective and less resentful towards Harry as he watches him grow. This could lead to a completely different dynamic between Snape and the other characters too, like Dumbledore. He might not be as secretive from Dumbledore about his feelings for Harry.
Well, at first Harry might be very suspicious. But as Snape shows consistent care, Harry could start to see him in a new light. Maybe he realizes that Snape has more layers than he thought. He might begin to understand that Snape's past actions were more complex than just being mean to him.
He might become more selfless. Usually, Draco is quite self - centered, but with a baby Harry to look after, he has to think about someone else's needs first. For example, he might sacrifice his own comfort to make sure Harry is warm and fed. Also, he could become more responsible as he has a life in his hands, and any mistake could be costly for Harry. This would be a huge change from his carefree, sometimes reckless, self.
It changes their relationship drastically. Initially, they were at odds. But with Snape taking Harry in, they start to see each other in a new light. Harry might see Snape's more vulnerable side and Snape might see Harry as more than just James Potter's son.
One possible plot could be that Harry discovers a time - traveling accident has brought baby Snape to his present. Harry, being the kind - hearted person he is, takes it upon himself to care for the baby. He has to figure out how to feed the baby, keep him clean and comfortable. Maybe he also has to protect baby Snape from any threats in the wizarding world that might target Snape even as a baby.
Harry is known for his kindness and loyalty. So, he would take care of Draco with a lot of patience. He would probably stay up all night if Draco was fussy, just to make sure he was okay. His protective nature would also mean he'd keep Draco safe from any harm, whether it's from other wizards or just from the general dangers in the wizarding world.
Harry's relationship with the Weasley family could grow even deeper. Teddy would be welcomed into the large Weasley clan. Molly Weasley would probably dote on Teddy, cooking his favorite meals. Harry's bond with Neville could also strengthen as they might share their experiences of taking care of the younger generation. And his relationship with the wizarding community as a whole would be seen in a new light, as he is now a father figure.
It often deepens their bond. Hermione's care shows Harry how much she truly cares about him. He starts to see her in a new light, not just as a friend but as someone who will be there for him no matter what. This can lead to a more intimate friendship where they share deeper secrets and emotions.
Harry might first try to figure out what's wrong. If the baby is hungry, he'll quickly get a bottle. If it's a wet diaper, he'll change it. Sometimes, he just holds the baby close and rocks it gently, humming a little tune. He doesn't get frustrated easily because he really cares about the baby.
Well, at first, Harry is just doing his duty to take care of Draco in his ferret form. But as time passes, they start to communicate in a different way. Draco, unable to be his usual snarky self as a ferret, has to rely on Harry. Harry realizes that Draco isn't all bad, and Draco, in turn, sees Harry's kindness. So, their relationship evolves into a more friendly and trusting one.