I haven't done a lot of low-rage, intellectual musing, but I think the proper time for that has come.
Obviously others' children are continued salt in an open wound for a barren woman. And more painful still, when other infertile women become pregnant or adopt, we are not only confronted with yet another other's child (and attacking us from within our "safe" inner sanctum, no less), but, even more painful, we lose a friend and an ally. When that crossing over happens en masse, or has been going on for a long time, each new person who crosses over leaves us more totally alone. We childless women are now an endangered species in the infertility blogosphere. The emotional toll of all these things shouldn't even need explaining (but invariably does).
Leaving aside the anger and the sadness, what about the theological implications?
I am certain beyond doubt that God does not guarantee all women - or married women, or married Christian women, or married Catholic women, or any other demographic - a baby. I am certain beyond doubt that, of those who are not able to have a biological child naturally or with medical intervention, not all are called by God to adoption. Any individual woman or couple might suppose they were not called to adopt, and be mistaken, in that God had actually called them to adopt (and it is clear that everyone with children believes this is the case with me). But it is definitely not the case that God calls 100% of the naturally childless to adoption. (It is also not the case that everyone who would like to be married will eventually find a spouse. God is not in the "even Steven" game; this world is fallen and not everything is going to wind up neatly. Or, as my mother always put it, "Life is not fair." If you haven't already - get used to it.)
Along these same lines, there are childless women who lack the financial resources to pursue all the medical treatment (whether morally questionable or otherwise) that might enable them to bear a child, who lack the information to access all the appropriate treatment, whose other health concerns prevent them from securing all available treatment, or who (rightly) determine that pursuing every available form of treatment would be inappropriate for their lives. There are childless couples who lack the means to adopt (because of finances, age, or other reasons). There is not a band-aid big enough to assign a baby to everyone who wants one so that those not afflicted with this problem can call it "solved" and ignore it.
In the abstract, I know - with certainty - that all these things are true. This leads me to some conclusions. If all these things are true, then it may be the case that I will never have a child. It might also not be the case - people do randomly get pregnant after years of trying - but that ending is not guaranteed. So I must accept that a biological or adoptive child could be cast into my path, but will not necessarily be. I might have to live the rest of my life childless, because anyone might have to live the rest of his life childless. In principle, it can happen. God does not guarantee otherwise. Ergo, God has allowed that this cross should be allotted to some of us.
But if this can happen in theory, and therefore could happen to me, then it could happen to other people, too. And the law of averages dictates that it actually will happen to some small but distinct percentage of infertile women. Since I know far more infertile women than the average person (yes, hello), it should logically be the case that some small but distinct percentage of those I know will be childless for life.
See where I'm going yet? I would guess not, but I may be wrong.
Here's the problem. That doesn't appear to be happening. That is, from my current vantage point, it strongly appears that every infertile couple I know will eventually - probably even relatively soon - have a biological child or adopt. (Yes, TCIE, including you. And stop making that face.) I have no desire to see any individual person (even me) live childless forever. I'm not asking that someone else suffer longer or worse so that I have an ally, or in order to prove one of my pet theories.
What if I am the only infertile who is still childless at 40? What if every other infertile woman on the planet who is that old or older has had a child by that time? In principle, my certainties won't change. I did the math carefully and it all checks. But if, in spite of these principles, God has in fact decided to give every single infertile woman a child but me, what does that mean? It doesn't mean the principles are wrong, but it certainly adds a layer of analysis. It means that I'm childless not because God has allowed me to carry this cross, as He allows some infertile women to do; but rather because He has decided that I, and only I, should be childless, that I should be alone, that I should have no friends who will understand, and that I will have to have other people's children forced on me without ceasing - because everyone else will have children.
That's not good.