A 60-year-old woman goes to her doctor for her annual physical. He examines her thoroughly and says, 'Well, I've got good news and bad news for you. The good news is that you are in wonderful shape. I can't find anything at all wrong with you.'
She then asked 'What's the bad news?' The doctor said 'I'm a little surprised, but you're pregnant!' She flew out of his surgery , ran home and called her husband at work. When he answered, she blurted out, 'You stupid old goat -- you got me pregnant!'
After a long pause, he said 'I'm sorry, but who is that calling?'
Because the husband had been having sex with other women, didn't recognise his wife's voice on the phone, so he thought it might have been one of the others who was pregnant.