Bristol Palin, the 18-year-old daughter of Alaska Gov. Sarah Palin, gave birth last week to a son, Tripp Easton Mitchell Johnston. “Teenagers need to prevent pregnancy to begin with—this isn’t ideal,” said Bristol in a statement. But, she added, “I can’t imag­ine life without him now.” The governor admitted she was “in despair’’ when she first found out that Bristol and boyfriend Levi Johnston were expecting. “Isn’t it just like God to turn those circumstances into such an amazing, joyful blessing when you ask him to help you through?” Palin said.