A chicken farmer goes to a local bar, sits next to a woman, and orders a glass of champagne. The woman perks up and says, "How about that, I just ordered a glass of champagne, too!"
"What a coincidence" he said, "This is a special day for me, I'm celebrating."
"This is a special day for me too, I'm, also celebrating!", says the woman.
"What a coincidence," says the man. As they clinked glasses, he asked, "What are you celebrating?"
"My husband and I have been trying to have a child, and today my gynecologist told me I'm pregnant!"
"What a coincidence," says the man, "I'm a chicken farmer. For years all my hens were infertile, but today, they're finally laying fertilized eggs."
"That's great!" says the woman, "How did your chickens become fertile?"
"I switched cocks," he replied.
She smiled and said, "What a coincidence!"
Hat tip to DD