How can I help my sister ?

My sister is having a baby girl in August she's really scared. She's too young to be having a baby she's 18 19 next month. She's still a kid herself. She's worried her daughter might not have a father she and him keep having problems they have an on and off relationship he's too old for her. He's old enough to be her dad. She's worried she'll be alone. Also she has a huge fear of hospitals she can't stand needles she freaks out if she gets a shot she doesn't want an IV stuck in her she hates them more. How can I help her ?