Oh Dear.

What Was Going on That Week?

It's possible your parents were listening to the following song while you were conceived (It was the #1 Song that week):

"Reunited" by Peaches and Herb

http://www.youtube.com/watch?v=N1uvmh75xxs#t=32

It's possible this movie got your parents in the mood to conceive you (It was the #1 Movie that week):

Alien