Word coming out of Atlanta is that last night rapper Nelly and his girlfriend Ashanti told people that they're expecting a child together.According to a EXTREMELY RELIABLE industry insider, Nelly and Ashanti were in Atlanta yesterday filming a music video together with rapper Plies. And word is that late last night (after filming ended) the hip hop couple held a "secret meeting" where they announced the pregnancy.Unfortunately, our insider wasn't there to hear the words directly from Nelly's mouth - so for now we're chalking this one up as a rumor. But our insider spoke to someone who reportedly heard the news directly from Nelly.