EF Code First, not generating database - entity-framework

Question

I have an console application project in visual 2012. I want to use Entity Framework 6 code-first. when I run my project it does not create any database in my SQL Server. I am not able to create database by code first in my SQL Server.I am not getting any exception while build & run.
below is my code :
namespace CodeFirstNewDBeSample
{
class Program
{
static void Main(string[] args)
{
using (var db = new BlogContext())
{
//Console.Write("Enter a name for new Blog:");
//var name = Console.ReadLine();
//var blog = new Blog { Name = name };
//db.Blogs.Add(blog);
//db.SaveChanges();
}
}
}
public class Blog
{
public int BlogId { get; set; }
public string Name { get; set; }
public virtual IEnumerable<Post> Posts { get; set; }
}
public class Post
{
public int PostId { get; set; }
public string Title { get; set; }
public string Content { get; set; }
public int BlogId { get; set; }
public virtual Blog Blog { get; set; }
}
public class BlogContext : DbContext
{
public BlogContext() : base("name=BlogDBString") { }
DbSet<Blog> Blogs { get; set; }
DbSet<Post> Posts { get; set; }
}
}
Config File :
<connectionStrings>
<add name="BlogDBString" connectionString="data source=MY-PC;initial catalog=BlogDB;integrated security=True;" providerName="System.Data.SqlClient" />
</connectionStrings>