Every culture has it's own set of beliefs and that is also true for pregnancy. Simple things like touching a pregnant woman's belly or throwing a baby shower are huge no-no's to some.
I recently got to the point in my pregnancy where regular pants are just not an option anymore. The belly has gotten too big to button anything and my original rubber band trick now just leaves my barn door wide open for the world to see. And so I have bought my first pair of maternity jeans.