BDSM involves some complex and often not publicly appropriate themes. And pregnancy should be a situation full of care and positive values. Combining them in a so - called 'love story' is not something that should be promoted. We should focus on healthy, positive and ethical relationship stories.
Well, it's hard to say for sure. The concept of 'porn-like' is quite subjective. Some might consider certain novels with excessive sexual descriptions as such, but it depends on individual perspectives and cultural standards.
In many places, 18+ porn comics are considered illegal. This is because they can have a negative impact on society and violate moral and legal standards.
The main distinction of porn with a story genre from regular porn is the presence of a coherent narrative. Regular porn often jumps straight to the sexual action, while the story genre tries to add some kind of story framework around it. But in the end, both are adult-oriented and feature explicit sexual content.
No. Ethical BDSM is built on the foundation of informed consent. Forced stories imply non - consensual actions which go against the basic principles of BDSM.