A/N: J.K Rowling confirms that Lily Potter was pregnant with her second child when Voldemort killed her. Now if only they'd learnt the truth about Pettigrew sooner.
"James," Lily said from the doorway, "We need to talk."
James Potter nodded and picked up his son, Harry, and put him in a play pen set up in their lounge room before turning to face his obviously anxious wife.
"Oh baby, what's wrong?" he asked in a typical James-like manner, moving forward and wrapping his arms around her waist. She buried her face in his shoulder and took a few deep breaths, attempting to calm herself.
"Lily?" James prompted.
"I'm pregnant," she mumbled into his chest.
Unlike the first time Lily had shared the news, when she had discovered she was pregnant with Harry, and James had danced around the house for a good hour, this time he didn't move. In fact, he stiffened to the point that Lily couldn't move.
"James?"
He loosened his grip but didn't let her go, "How far along?"
She gulped, "Not long, a month maybe."
"Lily, what if..." James didn't even finish his sentence.
"Peter wouldn't desert us," she said, trying to sound confident, "the baby is going to fine."
James nodded in agreement, "You're right. It's just another reason to defeat the bastard."
Lily ignored the fact he'd sworn in front of their child and both of them ignored the fact that this was going to be another life for Voldemort to take, just another way for him to grow stronger. And if he did get to them, it was going to be their fault for bringing the baby into this world.
Smiling tentatively, James went to his son, "Hey Harry, you're gonna be a big brother."
Baby Harry clapped and beamed, "Baby?" he asked as only a child could.
"Yes," Lily replied, rubbing her still flat belly, "Baby."