Well, another option is to join relevant fan communities or forums dedicated to the Darkwing universe. There, you can ask fellow fans if they know of any such fanfictions. They might be able to point you in the right direction or even share some unpublished works or works in progress.
One possible plot could be that Darkwing and Morgana discover they are expecting. Darkwing then becomes overly protective, trying to keep Morgana safe from all the villains in their world. Meanwhile, Morgana is dealing with the physical and emotional changes of pregnancy and trying to convince Darkwing she can still handle herself.
Maybe the plot could revolve around how they adapt to each other's different magical and non - magical worlds. Morgana might try to use her magic to help Darkwing Duck in his battles in a more domestic setting. For example, she could use magic to clean up their lair or cook magical meals for him.
Launchpad could be really excited for Darkwing Duck. He might see Morgana as an asset in their crime - fighting adventures. He could also be a bit clumsy around her magic at first. Gosalyn might take some time to get used to Morgana. She could be a bit jealous at first, thinking that Morgana is taking away her 'dad' (Darkwing Duck), but later come to love her as a step - mother figure.
One great fanfiction in this theme might be 'The New Beginning' where it beautifully depicts their journey into impending parenthood. It shows how Meliodas is both excited and a bit nervous, and Elizabeth is full of anticipation.
One possible fanfiction could be where Phoebe Grey's pregnancy is a surprise to everyone around her. The story might focus on how she copes with the changes in her life, her relationships, and her future plans. It could show her friends and family's reactions, which range from shock to excitement.
One great fanfiction could be 'The New Chapter for Shinichi and Ran'. In this story, it beautifully depicts Ran's journey of pregnancy. It shows how Shinichi is by her side, dealing with all the emotions from excitement to worry. The author does a wonderful job of portraying their relationship in this new phase.
One popular Fleur Weasley pregnant fanfiction is 'The Weasley Miracle'. It beautifully explores Fleur's journey through pregnancy in the wizarding world. The story focuses on how she adjusts to the new changes, her relationship with her family, and the anticipation of the new arrival.
One interesting Stephanie Brown pregnant fanfiction could be 'A New Chapter for Stephanie'. It explores how her pregnancy affects her relationships with friends and family in the Gotham City setting. The story delves deep into her emotions as she prepares to become a mother while still dealing with the chaos of the city she lives in.
One approach could be to start from the general relationship between Tails and Cosmo in the Sonic universe. Since their relationship was quite touching in the original story. Writers who are interested in exploring their story further might have created some pregnancy - related fanfictions. But it could be a relatively niche topic. You may need to dig a bit deeper by exploring different fan - created content related to Sonic and its characters.
I'm not sure of a specific fanfiction on this. But you could start by looking on popular fanfiction websites like Archive of Our Own. Search for the tags 'JJ', 'Hotch', and 'pregnancy'. There might be some great stories there.