Most Helpful Guy
Seems like kind of a stupid question if you've just been on a date or two, therefore you handle it like this. You answer by saying that initially your response is a pre-programmed biological process in which the fertilized egg travels down the fallopian tube and attaches to the inside of the uterus, where it begins to form the fetus and placenta and none of this requires your conscious thought to occur. After this happens you are undecided as to what you would do, then you go on to ask them what they would do if they got pregnant. At this point they should get the hint that stupid questions deserve stupid answers.
When you are having or about to have sex with someone, then in my opinion this question becomes a lot less stupid.