A chicken farmer went to the local bar, sat next to a woman, and ordered 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 and I'm celebrating also" said the woman.
"What a coincidence" said 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. I'm a chicken farmer and for years my hens were infertile, but today they're finally laying fertilized eggs."
"That's great" said the woman. "How did your chicken eggs become fertile?"
He said "I switched cocks"
She smiles and says "what a coincidence!"