To Try Again or Not..That is the Question

Blessings...
Nate and I are blessed.  Really.  We have 5 kids between us.  Five.  That is a lot and we are really lucky in that they all get along pretty well. We have them 50% of the time so it is either complete chaos in our house when they are all there or too quiet when it is just the two of us.

Picture: first day of school.  This year all 5 are going to the same Elementary School!

Too Quiet Around Here...
It's at those quiet times when the thought of having another baby creeps into my head.  I know, it's a crazy thought with what we went through with Lila, and then the fact that we do have many other healthy kids, but I still dream of sweet baby smells, holding them, when they fall asleep in your arms...all of it equals heaven!

Miss O, my first baby.

Thank Heavens for BabyCenter...
When I was going through the loss of Lila I spent a lot of time on a website called BabyCenter (babycenter.com).  They have several groups there for women who have terminated for medical reasons.  Those groups have been a lifesaver for me in many ways.  There is one group for women Expecting after terminating for medical reasons.  I am what is called a lurker on that board.  I am not a member but I read their stories.  I understand their fears that something again could go wrong.  I pray for them when they post that they are awaiting test results or got bad test results and I am so happy for them when they end up with a completely healthy baby.

The Question...
The question is, how do you know if it is worth it to try for another?  Or when you should just hang it up and appreciate what you have?  I don't have much time left to decide - I am 42 years old.
In reproductive terms, I am way into advanced maternal age (that starts at 35).  But I have a little hope that there are still some good eggs in there.   Maybe I just have to get my husband on board :-)

~Christine