....I don't think you've really realized, yet, just how serious this is IF this is all fact. This kind of event impacts your families, friends, jobs, (practically anyone you associate with), and probably the eventual future of your marriage. Not to mention what your baby will face as he/she grows up. Its one thing to have a biracial baby through a biracial marriage, or even a baby through another white male affair, but what you're going to be running into, being married to a white male and carrying a black baby, is a lot of biasness from many of those (above). Maybe its time to create an "insemination" story to go along with your conception.
....Of course, there are those who simply feed off this form of sensationalism.
....For the baby's sake, I hope it works out for the best for all of you.