Disclaimer: I do not own Harry Potter and his world, I just play with it.
Prologue
Everyone knew that James Potter wanted to date Lily Evans. He had been smitten with her since he was eleven. However she had been clear how she felt about him. Yet he persisted and continued to try and capture her affection until she finally caved. No one knew about the time he gave up on her.
In the spring of his sixth year, James came to the conclusion that Lily would never give him the time of day, so he started to look around at the other girls at Hogwarts. He had to admit that there were a lot of very beautiful girls. One seventh year Gryffindor caught his eye, and the slender young women showed some interest in him too. They started to secretly see each other, mostly meeting up in empty closets or classrooms.
They both knew there was no future in their relationship. Although they were physically attracted to each other, there was nothing there to carry their relationship beyond Hogwarts. The day before leaving Hogwarts, the two of them agreed to part ways. They both thought that they would never see each other again.
However a week into summer vacation, James answered the door to find her standing in front of him.
"Diana? What are doing here?" James stared at the young woman. He was very confused. She looked at him and he realized something wasn't right. Her dark hazel eyes were red and puffy, as if she had recently been crying. Her normally beautiful and well-kept chestnut hair was disheveled and messily tied up in a ponytail.
"Can we talk please? Some place private?" She begged him, not wanting to have this conversation on the doorstep.
"Sure. We can talk in the study." He led her in. Just then Sirius came out of the kitchen and was startled to see Diana in their home. He barely knew the older Gryffindor, and as far as he knew James barely knew here too.
"What is going on?" He asked, seeing his pseudo brother leading the older girl into the study. James answered his question by slamming the door in his face. Diana placed a silencing charm on the door to prevent any unwanted ears from hearing their conversation.
"Would you like a drink, I can have one of the house elves to bring something." James offered as the two of them awkwardly sat on the couch. Diana just shook her head. They sat in silence for a couple of minute, nearly driving James mad.
"There is no good way to start this conversation." Diana started. James's stomach dropped. Nothing good could come from a conversation starting this way. She looked up and made eye contact with him. "I'm pregnant."
He stared at her for a couple of minutes before what she said register.
"Can you repeat that please?" Hoping he had misheard her.
"I'm pregnant," she repeated, trying not to bite his head off.
"With a baby?" He stupidly asked.
"Of course with a baby. What else would I be pregnant with?" She snapped at him.
"And I assume that you are telling me becauseā¦" He trailed off, knowing what was coming but not ready for it.
"Because you're the father." She finally broke eye contact with him.
"Are you sure?" He knew he made a mistake as soon as the words were out of his mouth. She stood up and started to pace the room, obviously upset.
"Of course I'm sure. You're the only one I have ever slept with." She continued to pace as the tears started to fall again. James got up and hesitantly wrapped his arms around her. She did not return the hug, but she at least did not pull away. After a bit she calmed down and the two of them returned to the couch.
"Look James, I did not come here to try and trap you in a relationship or try get you to marry me. I figured since you were the father you had the right to know." James looked at the beautiful young women sitting next to him. He did not know what to say. Their whole world had just been turned upside down.
"I know you would never do that. But we are having a child together. What are we going to do?"
"WE are not going to do anything. I am the one having this baby. You will go back to Hogwarts and finish your last year. You will graduate and move on with your life."
"You mean you don't want me to be a part of you life anymore, a part of our baby's life?"
"Honestly, right now, no I don't. James we both knew that our relationship was purely physical. And we both know that you are not father material. Maybe if you grow up a bit. I wanted you to know, but I expect nothing from you." Her word stung. She did not want him to be a part of the child's life at all. He was not sure what to think of that.
"At least let me help out financially. Let me provide for the child. And I will work on growing up so I can prove to you I can be a father." She smiled. She had not asked for money or anything out of James. She did not want his world to change. She wanted him to still have his life, the way he planned it. But she had to admit that having him offer to help support her and the baby was a bit of a relief.
They shared one last hug before she left. Unbeknownst to the two of them, they would never see each other again.
James did grow up his seventh year. He started to mature and mellow out. He wanted to prove to Diana that he could be a father. His behavior though also impressed a young red head Gryffindor. The girl of his dreams finally acknowledged him, and the two fell in love. They married and James was able to truly show he could be a father by having a son with Lily.
James did faithfully send money to Diana and his daughter every month. Diana had sent him a letter soon after she gave birth to inform him of her name. Abigail Fay. He even set up a trust vault for her for when she started Hogwarts. He never told anyone about his daughter though.
Just when Diana thought about contacting James and introducing him to his daughter, the Potter family had to go into hiding.
October of 1981 was the last month Diana received her monthly stipend. She cried when she saw the papers declaring the father of her daughter dead. She mourned for her first love, crying also because her daughter would never know her father, and a little boy would never know either of his parents.
Many things happened the days following the attack on the Potter family. Sirius Black was arrested and sent to Azkaban without a trial. James and Lily's wills were sealed before they were read and executed. Harry Potter seemed to disappear from the wizarding world as the Boy-Who-Lived legends started to pop up.
A young witch and her daughter also disappeared from the wizarding world, however most did not know about this occurrence.
