A man, sick and tired of work everyday asked God to switch body with his wife. The next morning man woke up as a woman, cooked, fed family, drove to school, washed and ironed, went out for groceries, balanced checkbook, vacuum, dust, sweep, cooked dinner. After supper, cleaned kitchen. At night, made love to husband. The next morning, he admitted to God his mistake and prayed for a trade back. God said:

Ok, but you have to wait for nine months....

You got pregnant last night...