They could tell Ginny's family by having a family meeting at the Burrow. Harry would be a bit nervous but Ginny would be beaming with joy as she shares the news. The Weasley family would immediately start planning for the new baby, with Fred and George coming up with some magical baby products ideas.
The Weasley family would likely be overjoyed. Molly Weasley would probably start knitting baby clothes right away and fussing over Ginny. Arthur Weasley would be proud and offer all kinds of support, maybe even trying to build some new magical baby gadgets. As for Harry's side, since he doesn't really have much family left, his friends like Hagrid would be extremely happy. Hagrid might bring some special magical creatures to visit Ginny during her pregnancy, like a very gentle unicorn that is said to bring good luck to expecting mothers.
Often, they show Harry as being extremely protective. For example, in many fanfictions, he won't let Ginny do any strenuous magic or chores around the house. He's constantly worried about her well - being. Ginny, on the other hand, is shown as being strong yet vulnerable. She's excited about the baby but also has her moments of fear and doubt, and Harry is always there to comfort her.
Some of their friends might also be a bit worried. For example, if there are still dark forces lurking in the wizarding world, they could be concerned about the safety of the baby. But overall, the love and support from their friends and family would far outweigh any concerns, and they would all come together to ensure a happy and safe environment for the new addition to the family.
Some of their other friends from Gryffindor might take sides. There could be a group that blames Harry for being too preoccupied with post - war matters and not giving enough attention to Ginny. Another group might think Ginny is being too impatient with Harry's recovery process. This could create some tension among their friend group for a while until they all learn to accept the break - up.
The main characters are obviously Harry and Ginny. Since it's about their pregnancy, they are at the center of the story.
The Weasley family would be overjoyed. Molly Weasley would probably start crying tears of happiness and immediately start knitting things for their future home, like warm sweaters and cozy blankets. Arthur Weasley would be proud of Ginny and happy to have Harry as part of the family. He might even give Harry some old family wizarding artifacts as a sign of welcome.
It would change in many ways. They'd have to rely on each other more. Harry might become more protective of Ginny, and Ginny would look to Harry for more emotional support. They'd also have to communicate better to deal with all the new responsibilities and decisions that come with having a baby on the way.
Their relationship would likely become more intense. They'd have to rely on each other more, sharing a deep secret. There would be added pressure as they become responsible for another life. It might also make them grow up faster, as they face adult - like situations.
In the fanfiction, their relationship development might be explored through their communication. They have to talk about things like finances for the baby, living arrangements, and their own personal growth. This could lead to some arguments and make - up moments that strengthen their bond in the long run.
Often, they would rely on the love they have for each other. Ginny, being a strong - willed witch, would be determined to have a healthy pregnancy. Harry, with his sense of responsibility, would start looking into ways to provide for the family. Maybe he'd take on more dangerous tasks for higher rewards initially, but Ginny would convince him to be more cautious for the sake of their unborn child.