Trig Palin was born April 18, 2008.
Bristol is five months pregnant, which means she conceived sometime in March or early April.
It is physically IMPOSSIBLE for Bristol to be Trig's mother, even the leftists have dropped this pathetic theory.
The ONLY reason they came up with the sick story that Bristol was Trig's mother is because it was fairly well known in Wasilla that Bristol was pregnant. The left jumped to conclusions and assumed that she was Trig's mother.