Okay, well now we clearly are doing actual hypotheticals. So no, you don't self report to a medical board. That's weird and I doubt there's even a mechanism for such a thing. If you really MUST get some sort of absolution, you could talk to your malpractice carrier for more clear guidance specific to your state. I don't recommend that, but it's a heck of a lot better than talking to the medical board. Since you have now discovered you have a professional relationship, you keep it professional and just state that you aren't interested in meeting again and wish them well. There's no need for more discussion, particularly given the description of the relationship such as it is. Pregnancy is really unrelated to the underlying dual role that prevents a romantic relationship. If the pregnancy is brought to term, a court or two sets of family lawyers will determine appropriate custody and financial support of the two parties, as with any other couple who are not in relationship at the time of a child's birth.