The nine month gestation period is actually a myth. The reason people say it's nine months is because people usually discover that they are pregnant when they miss a period -- meaning a month has gone by since they conceived. If you look up the
human gestation period you'll get 40 weeks, which is approximately 10 months. So, if he was born in June of 2002, he was likely conceived 40 weeks earlier, in 6/2002, he was likely born in 8/2001.. which is August.