If Jacob is Ben's version of the smoke creature, then is "Jacob" responsible for the death of the pregnant women?

The pregnant women die because Ben's mother died from her pregnancy?

Ben's subconscious at work?

__________________
charlie98210
"Whoa!" she said. "Cry 'Havoc!' And let loose the dogs of war!"
And, like Banquo's ghost, they just won't go away.