She Chose My Brother, I Chose a New Bride

Summary

A week before our wedding, my fiancee announces that she is pregnant using my younger brother's frozen sperm.

"I'm grateful that our love can carry on in another way," she gushes on social media, showing off the test results.

My brother replies, "Meeting you was the luckiest thing that ever happened to me."

Then Mom chimes in. "Jenny, you've been through so much. Nathan's apartment should be under your name alone."

I don't argue and simply reply with a single word—"Congratulations".