Hi M.,
I am very sorry to hear about your miscarriage. I was off the pill and kind of trying for about 2 years before I got pregnant the first time, and had a miscarriage. Without using any protection and without really trying I got pregnant again 6 months later, and miscarried again (both around 8 weeks). After the second one I got pregnant again right away before I had my next cycle. It took me by surprise that it happened so quickly, but believe me, I was happy! The 3rd pregnancy ended up a healthy one.
My doctor said it is best to wait for your next cycle because it makes the pregnancy easier to "date" (ie, when you got pregnant), but if your body gets pregnant then it is "ready".
I know as sad as I was after my miscarriages I also felt a little relief that I knew I could get pregnant. I have some friends that were not that lucky and had to try IVF which is very expensive.
Good luck!!!