Where to seek help if you are pregnant, alone, and have no income
Crisis Pregnancy Centers
Food Pantries or Soup Kitchens for food
Women's Shelters may or may not offer support but may direct you to an organization within the community who does at least.
Children's Health Insurance Program (CHIP)
USDA National Hunger Clearinghouse
The U.S. Department of Health and Human Services Maternal and Child Health Bureau
Can you think of any others?