Edited
Read your post and the prior one which I somehow missed (??).
It sounds like you've got some very crucial elements in your relationship as well as the makings of a perfectly good train wreck.
I believe that when you find the right person, it should be as natural as two birds in a rose bush, however, blended families, age and other factors (like therapy) sometimes interfere w/this.
Despite the Un-PCness of it, I like the fact that he wants you to have his child. I had a long discusion w/my guy friends about this a few months ago and they all agreed that this is "icky" with most women they sleep with, but with the "one" an overwhelming need.
The title of your post suggests that you have read or are aware of the Greg Behrendt book of the same title. I have this book and forty more just like it - The Rules, The Anti-Rules, The Promise, blah, blah, blah. I read all of them and mentally spank the monkeyd thoughts of worthiness, unworthiness, etc. for years.
HOWEVER, when I met the guy I'm w/now, after effing up the relationship for months, I just let go of all my BS and it literally became effortless. If I want to hold hands, I reach over and hold hands. If I want to call him, I call. I'm not talking about the effed up version of this where I call to ask if he thinks I'm fat in these pants or some other screwed up thing.
Sex is astounding because for once in my life I'm not worried about ANYTHING when we have it, not ever orgasm, because, he/I will reach it or not and it doesn't matter.
I think you can analyze anything to death, even analysis, and I'm not knocking examination, I just think that relationships w/men should be fun, not work.
You have a lot of good raw elements at your bidding - good luck.
babycakes