oldie but goodie...

A blond and brunette attend a baby shower. The blonde confides to her friend that she too is pregnant!

"Is it a boy or a girl?" asks the brunette.

"How do you know?" The blonde replied.

"Well" said the brunette, "it is all in the positioning!"

"Our friend over there concieved while her husband was on top of her and she is having a boy".

"And I had a girl after I conceived when I was on top!" She added.

The blonde broke out into a fit of sobs and crying!

The brunette said " What's wrong? What's wrong?"

The blonde choked out, " I'm going to have puppies!"