Microsoft Word to LiveCycle: why aren't fonts embedded?

I have noticed that LiveCycle seems to embed fonts within dynamic pdf forms. I deleted Arial Narrow off my machine and tested the form and it still appeared as Arial Narrow. This is great! However...
 
When I design a form in Microsoft Word using a table to arrange the information, it presents some problems. Here are the steps I take:
 
1. Lay out information in a table in Microsoft Word
2. Create PDF from Word Document
3. Add form fields in Acrobat X
4. Open form in Live Cycle and adjust form fields as needed
5. Save as a dynamic pdf
 
When I open the pdf after following the above steps, if the font I used (say Arial Narrow) is not on my machine, it turns into a jumbled mess and substitutes the font for another one.
 
My question is this: why is it that when you build a dynamic form from scratch in LiveCycle, it embeds the fonts and they appear properly- but when it is built in Word and then brought into LiveCycle, it substitutes the missing font?
 
Is there any way around this, or some step I am missing?
 
Thanks!