Expanding my vocabulary about middle age

I haven't given up my running but I have been a bit concerned for the past couple of weeks that I would have to rename my blog to www.pregnantinmyforties.blogspot.com or, more appropriately www.godmustreallyexist-iamcarryinghischild.blogspot.com. Instead (and somewhat thankfully), I am just becoming familiar with middle-aged biological terms: amenorrhea, perimenopause, premenopause, actual menopause. Given my age, I guess I'm either pre- or peri-. But its been a strange few weeks with my husband and I having discussions about our levels of intimacy which always concluded with the phrase 'but you can't get pregnant from doing that - can you?'

I should point out that my husband and I proved a very fertile mix. And we are very grateful for our two too easily conceived children. But the older we were becoming, the more contraceptively challenged we were. And despite conceiving at the drop of a hat, I had complications through both pregnancies which were too risky to risk repeating.

Anyway, some adolescent style fumbling and one missed period do not a pregnancy make. But for the first time in my life, I seem to be, biologically-speaking, unpredictable.