Let me put it this way, 90% of porn involves unprotected sex between fertile looking specimens of the opposite sexes. Yet, I don't think anybody watches porn hoping to see a heavily pregnant actress in the final scene, giving birth. I don't think you'll find any porn star bragging about their offspring on their bio pages. I don't think you find any sane porn fan looking for such information. Weird as fuck, huh? Or perhaps quite normal that porn like any other form of sex work is about provision of sexual - not reproductive - services. It's all about care-free carnal pleasure, either as an active participant or just a voyeuristic observer. One does not go to a brothel, or a titty bar or calls an escort because they feel like spawning tonight, do they? That, my friend, would be weird as fuck...