J.O.
It's definitely possible to "catch the first egg" and get pregnant before you get your first post partum period. But it is also common to not be able to get pregnant right away, even if you ovulate.
One study showed that the average return of menses for breastfeeding mothers was around 14 months, and I would say that, at 8 months post partum, you are definitely on the early side of things. Some women can't seem to get pregnant when breastfeeding at all, but I think most can. It just may take longer than you want to wait.
After my first baby, I cut way back on nursing and got my cycles back when he was about 12 months old. It took a couple of cycles for things to get back to normal enough for me to get pregnant, and then I was able to keep nursing my first baby at least a little until he was 18 months old.
I'm currently nursing a nearly 13 month old and hoping for my cycles to return. I stopped nursing him at night and am trying to cut down on daytime feedings. He's past the year mark, so that "should" make decisions easier, but it doesn't. I'm wondering if I will get my PP period or menopause first (hah, not really, but I'm not getting any younger).
It's tough to feel torn between nursing your existing baby and having the opportunity to have an as yet unknown baby. You may luck out and get pregnant soon, but if you are committed to BFing for a year, it might be best to just accept that your next pregnancy will likely be a few more months out.
Good luck!
Just to add, in light of the previous response, your body can take a while to gear up before it actually ovulates, so while fertility signs such as eggwhite CM are a good start, they don't necessarily mean your body is ovulating. (I've had such signs for over three months now and clearly haven't ovulated since I haven't gotten a period or gotten pregnant yet).