How could you

Lucy catches natsu cheating on her with lisanna and she breaks up with him. She went to her best friend, juvia's house. She confides in her and tells her every thing. Juvia also has a problem, she and gray just broke up. Gray kept hanging out with other girls and stripping around them, and juvia didn't want him to do that because the girls might try and take him away from her. They decided to go run away. Wendy tags along with them. Two weeks after they left the guild, Lucy found out that natsu got her pregnant. And she wants them to meet. So the girls agree that they will go back to the guild a few months after she gives birth. But while Lucy is pregnant she ran into a problem. They run into the black wizard, zeref, that makes it so the child won't be born. And Lucy has to go to the guild get help.