One possibility is that the story could focus on how Harry and Susan adjust to their new life as parents. They might face challenges like sleepless nights and learning how to take care of the baby's every need.
The baby could be a very energetic and curious little one, always getting into things around the house, much to the amusement and sometimes exasperation of Harry and Susan.
In some 'Harry and Susan baby fanfiction', the focus could be on the baby's growth and how it impacts the relationship between Harry and Susan. For example, as the baby grows, they might have different ideas on how to educate the child. Harry, with his own difficult childhood, might want to be very protective, while Susan could have a more laid - back approach. This leads to some interesting discussions and growth in their relationship.
One possibility could be that the story focuses on how they adjust to parenthood in the magical world. They might face challenges from those who oppose their union or from the powers that be in Narnia. The baby could also have some special powers or a great destiny.
It could be a story about the baby's special abilities. Since Harry and Ginny are both powerful wizards, their baby might inherit some extraordinary magic. The fanfiction could explore how they discover and help the baby develop these powers, like the baby showing signs of being able to communicate with magical creatures at a very young age.
Another option is to ask other Harry Potter fans directly. You can go to Harry Potter fan conventions or events (if there are any in your area) and ask around. People who are really into the fandom might know of some great 'Harry and Susan baby fanfiction' that they can point you towards.
The story could also take a different turn. Maybe Susan has some doubts about Harry's ability to be a good father. This could lead to some arguments between them. But as time passes, Harry shows his determination and love for Susan and the unborn baby, gradually winning her trust back and they work towards building a happy family.
In one scenario, their baby might inherit Harry's courage and Ginny's fierce determination. The baby could show signs of magic at a very early age, like making toys float around the nursery. This would bring both joy and a bit of worry to Harry and Ginny as they would need to protect their child from any potential dark forces that might be interested in such a powerful young wizard.
One possibility is that the story could focus on how they balance their magical duties with raising their daughter. For example, they might have to deal with threats from the remaining dark forces while also teaching their girl basic spells and the importance of kindness in the wizarding world.
It could be that Harry and Susan are escaping some sort of danger in England. They leave secretly and head to France. There, they try to blend in with the local community. Harry might find work as a painter and Susan could start teaching English. Their journey would be about not only starting anew but also constantly looking over their shoulders in case the danger from England follows them.
Perhaps in the fanfiction, a powerful magical artifact forces Harry and Severus to conceive a baby as part of a prophecy. They initially resist but gradually come to accept it. The plot might involve their journey to protect the baby from dark forces who want to use the baby's unique heritage for evil purposes. They have to put aside their differences and work together as parents.