Father: 0% DNA Shared.

Biological Parent Match (Donor): 99.9%

I didn’t scream. I held onto the edge of the desk so tightly my knuckles blanched. A chill spread through me.

Then I saw the name.

Mike.

Not a stranger. Not some anonymous donor. And certainly not a random error.

Mike — Greg’s best friend. The guy who showed up with beer for his promotion party. The one who changed Tiffany’s diapers while I sobbed in the shower during those early, sleepless months.

And that’s when I understood I was about to do something I never imagined a mother would face.

I was going to call the police.

Now I’m standing in my kitchen, phone pressed to my ear, listening to a woman from the department speak in a measured tone.

“Ma’am, if your signature was forged for medical procedures, that’s a criminal offense. Which clinic handled your IVF?”

I gave her every detail.

“I never authorized an alternate donor,” I said. “Not once.”

“Then you did the right thing by contacting us,” she replied. “I’ll reach out to the clinic.”

I took screenshots of the call log and the DNA results before setting my phone down.

Greg would be home in twenty minutes. And I was finished acting like I didn’t already know the truth.

Three Months Earlier

“Tiffany, slow down!” I laughed, catching her backpack before it knocked over a pile of mail. “You’re like a tiny tornado.”

She pulled a crumpled test kit from the front pocket and waved it triumphantly.

“Mom! We’re studying genetics! We have to swab our families and mail it in — like real scientists!”

“All right, Dr. Tiffany. Shoes off, hands washed, then we’ll take a look.”

She dashed down the hall. I was still smiling when Greg walked in.

“Hey, babe.”

“Hey.” He seemed distracted, kissed my cheek absentmindedly, and headed straight for the fridge.

Tiffany came running back and threw her arms around him.

“Hey, bug. What’s this?” he asked, nodding toward the kit.

“It’s my school genetics project,” she said proudly, holding up a sterile swab. “Open up, Daddy! I need samples from you and Mom!”

Greg turned slowly. His eyes fixed on the swab, then on me, then on our daughter.

His fingers twitched like he wanted to snatch it away.

The color drained from his face. When he spoke, his voice didn’t sound like his.

“No.”

Tiffany blinked. “But it’s for school, Daddy.”

“I said no,” he snapped. “We’re not putting our DNA into some database. That’s how they track you. I’ll write your teacher a note. But we’re not doing this.”

I stared at him. We had smart speakers in every room and a camera on the porch.

“Greg, you let a device listen to you complain about fantasy football.”

His jaw tightened. “It’s different, Sue.”

“How? It’s a class project.”

“Because I said so. Drop it.”

Tiffany’s face crumpled. The swab slipped from her hand.

“Is it because you don’t love me?” she whispered.

“No, baby, of course not,” I said, stepping toward her.

Greg said nothing. He grabbed the kit, crushed it in his fist, and tossed it in the trash before walking out.

That night, Tiffany cried herself to sleep.

After years of IVF — appointments, injections, hope stretched thin — you come to know your partner deeply.

I handled the shots. Greg managed the paperwork. He said it was his way of sharing the burden.

I remembered his hand squeezing my knee in the parking lot when I couldn’t stop crying.

But something shifted in him after that swab.

Later that night, as Tiffany slept, Greg caught my wrist when I reached toward the trash.

“Promise me you won’t do anything with that kit,” he said.

“Greg, what are you talking about?”

“We don’t need to know everything, Sue.”

After that, he lingered in the hallway after dinner, watching Tiffany set the table like she was something fragile and fleeting.

“Everything okay?” I asked one night.

“Just tired. Long week.”

Two mornings later, I stood at the kitchen counter holding his coffee mug, my thoughts racing.

Tiffany wandered in, rubbing her eyes. “Mom, can we finish my traits chart after school?”

“Of course,” I said. “Right after your snack.”

When she left, I stayed at the sink, Greg’s mug in one hand, a swab in the other. I didn’t want to be the wife who did this.

But I couldn’t be the mother who ignored it.

“I’m not snooping,” I murmured. “I’m parenting.”

I swabbed the rim. Sealed the tube. Labeled it with his initials — using the second swab he hadn’t noticed before destroying the kit.

And I mailed it.

The results arrived the following Tuesday.

Greg was in the shower. I opened the email like it might explode.

It did.

I stared at the words 0% DNA Shared until blinking felt impossible.

But what shook me most wasn’t the absence of Greg’s DNA.

It was the match.