Disclaimer: I don't own Harry Potter, or anything related to him.
Note: This was written for Fire the Canon's "50 Days of Inspiration" competition using the prompt negative.
Warnings: n/a
Rating: K+
Characters: Ginny
Word Count: 406
Ginny swirled the potion around the vial before taking a deep breath and walking toward the bedroom. It might have been more accurate if she had gone to St. Mungo's, rather than brewing the potion herself, but she wasn't willing for the potential leakage getting out that Mrs. Potter could be pregnant. The press was still looking for any information they could get into Harry's personal life, so it was better to do it all herself, given that the potion really wasn't that hard to brew, nor were any of ingredients expensive. Technically, she could have waited and let the team run the standard test tomorrow when she went in for her physical to make sure she was good for practice, but she didn't want to find out the news that way if she was.
Pricking her finger, she allowed a drop to well up on the surface before tilting it to allow the blood to drip into the vial. Swirling the potion around once more, she set it on the dresser and walked over to the window, not wanting to fret by staring three minutes at the darned thing. The sun sunk slowly toward the horizon, and Ginny watched the colors play across the sky in decorative swirls with gray clouds floating across the canvas of the sky. The desire to turn around and check the potion made her jittery, but she forced herself not to move, knowing she had set the alarm to go off when it was time to check.
Then the chime finally rang, she turned around to see that the clear solution had turned red. She took a deep sigh of relief. She and Harry had talked about the basic idea of starting a family, but Harry was more focused on getting through Auror training while she had expressed her interest in going to play professional Quidditch, so it didn't look as though would be any idea of babies for several years. If she had been pregnant now, that meant she would have been off the team and the chance at professional Quidditch would likely have slipped her by. Waiting gave them a chance to get settled down in their relationship, as well as let chaos of the Wizarding World find some order, and then there would be plenty of time for a family.
Pouring the liquid down the drain, Ginny binned the vial, glad that the results had been negative.