My girlfriend actually accidentally got pregnant when she was 16. And I think she had her second baby at 18 or 19. However, like I said it is a good thing that she did, because she had a hysterectomy last year after a miscarriage. And both of her pregnancies were extremely complicated. Her first time she was bedridden for seven of the nine months. But she doesn't regret it.
Yes, a lot of the information on this disease does contradict itself, and is very confusing. I would ask your doctor how long you should wait after surgery to try to conceive. However, I would not wait too long, since it will probably come back. I mean, god hope it doesn't, but you have to always consider all possibilities.
The light bleeding was probably from the disease. Since it was just a small amount I would not worry about it. I have that happen to me every once in a while too.
I wish you luck and if you have any more questions just let me know.