A childhood belief about getting pregnant

One day my parents were sitting close together, as the family was chatting with friends. And a man made a comment to them that totally confused me, being a little kid as I was at the time. He asked my parents if they were trying to keep up with "Mary". "Mary" had just had another baby. Now, I was learning in grade school about how the egg is fertilized by the sperm, etc. But they hadn't told us about how the sperm GET to the egg. So when I heard this comment, I thought that the sperm must jump through the skin when you get up against a boy. And THAT'S how the sperm gets to the egg.
After that, I was afraid to get near men and boys because I didn't want their sperm to jump through our skin and get me.