My DINK Wife is Pregnant: Who is the Father of the Child?

I was on duty in the obstetrics and gynecology department during a holiday, and I met my wife.

After coming out of the obstetrics clinic, she cried with joy and waved the ultrasound report.

"I'm pregnant! I'm finally pregnant!"

But when she got married, she said she was a Dink.

She also ordered me to get a vasectomy...