Suddenly she faints inside your car and you take her to the hospital. That's stressful.
At the hospital the nurses say she is pregnant and congratulate you that you're going to be a father. You say that you are not the father, but the girl says you are. This is getting very stressful!
You request a DNA test to prove that you are not the father. After the tests are completed, the doctor says the test shows you can't be the father since you're infertile, and probably have been since birth.
You're relieved but are stressed on hearing the news of your infertility.
On your way back, as the message sinks in, you start thinking about your five kids at home.
Now THAT is stress.