The friends would probably be a great support system. May and Max could bring gifts for the baby, like cute Pokémon toys. Dawn might offer to babysit so Ash and Misty could have some time for themselves. All of their friends would be there to celebrate the new addition to the family and would help out in different ways as the baby grows up.
Pikachu would probably be very protective of the baby. Since he's Ash's closest Pokémon partner, he'd be like a little guardian. Brock would likely offer his help and advice on taking care of the baby, as he has some knowledge about it. Misty might be a bit shocked at first but would eventually warm up and be like an aunt to the baby.
Their friends would be overjoyed. Brock would probably offer his medical knowledge to make sure the baby is healthy. Misty might be a bit jealous at first but would soon warm up and offer to teach the baby how to swim. Clemont could create some amazing gadgets for the baby, like a Pokémon - themed mobile or a stroller that can move on different terrains easily.
Misty would probably be shocked at first. After all, she and Ash have been friends for so long. But then she would be overjoyed. She might blush deeply and have tears of happiness in her eyes as she says yes.
Ash would probably be very shocked and hurt. Pokemon are like his family, and for Misty to steal one would go against everything he stands for.
Their friends would be really excited. Chad would probably be happy and offer to help with any heavy lifting or physical tasks around the house for when the baby arrives. Uryu might be a bit more reserved but still show his support in his own way, like making some special baby clothes. Rukia would be thrilled and would be constantly visiting, giving Orihime advice on motherhood.
Kim might be shocked at first. She's used to Ron being her sidekick and Shego being an enemy. But she could come around and be a sort of godmother figure, helping out when needed. Rufus would probably be excited. He'd be like a little furry uncle to the baby, always there to play and keep the baby entertained.
Tails would probably be really excited. He'd be the helpful uncle, always ready to use his mechanical skills to make cool toys for the baby. Knuckles might be a bit more gruff at first, but deep down he'd be protective of the little one. Amy would be over the moon and would constantly offer to babysit so she could play with the baby.
Sasuke would probably be initially skeptical but would come around. He might see the baby as a sign of Naruto's growth and stability. Sakura would be overjoyed and would likely offer to be like an aunt, helping with medical care if needed. Kakashi would be his usual laid - back self but would secretly keep an eye out for the baby's safety. The other villagers, especially the ones who have always supported Naruto, would see the baby as a new hope for the village and would celebrate the new addition to the Uzumaki family.
Kagome's friends from her village might be initially shocked. They know Kagome has been involved with the demon world, but having a baby with a wolf demon like Koga is a whole new level. However, some of her closer friends might eventually come around and support her. Inuyasha, on the other hand, would probably be a bit jealous at first but might also see the potential in the baby for good in the fight against evil.
Their friends would probably be really excited. They would likely offer to help out, like babysitting or bringing over food for the new parents. Some friends might be a bit jealous at first, seeing how happy Ross and Laura are with their new baby.