I truly wish I could remember where I read this but on one biography of Obama it said that he was born a month prematurely, (However, fully formed, developed lungs etc.) in Kenya and because he looked so old he was permitted on the plane with his mother back to Hawaii.
Sounds like just another cover story. If she married Barack Sr in Kenya in February (after being impregnated by Frank Davis in early November), she may have been trying to pass as just five months pregnant in July. She may have fooled the villagers— but not the BOAC employees that first time she tried to go home....