Six months of TTC and no luck

Hi, I'm Debbie and I'm 41. I have one son who just turned seven. It took us 15 months to get pregnant with him. We started TTC in October of 2009, and were thrilled in early January to discover we were pregnant after only three months of trying. Given my age, we'd never expected that things would be easier. Unfortunately, when I went in for an ultrasound at week 10, there was no heartbeat. The pregnancy had stopped progressing at around 7 1/2 weeks, but I had no symptoms. Since my body wasn't dealing with it by itself, I went in for a D&C a week later. That was in February, and we've been TTC again since March, with no luck. Given my age, I'm really nervous that this is going to be difficult if not impossible. To add to things, the last couple of months my cycles have been abnormal. I usually run from 28 to 30 days on average, but my last two have been 26 and 24 days. Also, my periods have suddenly shrunk in length from a full week to around four days long. I have no idea what's happening.

I wish I could discuss this with a doctor, but my husband has been unemployed for quite awhile and we have no health insurance. In fact, for a long time we didn't TTC because of our situation... it seemed crazy to TTC when our lives were so financially unstable. In the last year or so, though, we've felt like we really needed to start TTC again regardless of finances, because we have a wonderful family and can always get help if we get pregnant, but if we wait so long that I am no longer able to conceive, well... that can't be fixed. So I'm stuck with no medical input, which is frustrating, given that it's been six months of TTC since the miscarriage. I know this is the time that you would normally check with a doctor for fertility issues, but I can't. I just have to keep trying. I'm going to start charting as of my next cycle... until now I've just been tracking my period and trying to cover a wide spread of potentially fertile days.

Debbie