DrSuessRevived, you said that, ^"When the baby arrives, he/she is a separate person.
Until then, there is only one legal person and that is the mother. If she chooses to home birth, have someone or no one in the room when she gives birth, have an elective c section, go windsurfing against medical advice, it is no one's business but hers, because she has autonomy.
She also has the right to privacy of her medical records."^
As an aside, and I don't think the point's completely relevant, but I think that you're incorrect - the baby has rights after a certain point and in some certain circumstances the mother could face charges if her actions caused the child harm. On that basis, it would be the business of others. I think you've raised it as a point of logic, and so I only raise it because I think that highlights the flaw in your logic.
Notwithstanding that, if the OP's partner took just that part of the image that was the child and mounted on a black background and went round telling everyone, "I'm going to be a father", with whose rights would he be abusing?