One common theme could be the challenges of starting a family while dealing with the already established relationship from 'You've Got Mail'. For example, how they adjust to the new life changes. Another might be the reactions of their friends and family to the pregnancy. And also, the couple's own fears and hopes regarding their future as a married couple with a baby on the way.
Writers can make it engaging by focusing on the characters' emotions. For example, showing the excitement and nervousness of the pregnant character. Also, adding some drama like a disagreement over baby names or parenting styles.
Most likely it isn't. Usually, such titles are works of imagination or inspired by various elements but not based on real events. The story could have been crafted to engage and captivate the audience rather than being a true account.
It's a really heartwarming phrase. It often implies a strong bond of friendship. In many stories, it could mean that there's someone who will always be there for you, through thick and thin, just like in the 'Toy Story' franchise where Woody says this to Buzz and other friends. It's about loyalty, support, and the assurance that you're not alone.
Sure. But keep in mind that media mail has weight limits and specific guidelines for what constitutes eligible media. Comics might need to be properly packaged and labeled to be sent this way.