Hi K.,
I myself have had four c-sections, first one 14yrs ago, last one 2yrs ago, and had not a problem getting pregnant,my doc also had no concernes but one, going onto labor could cause a problem, but really, not to worry if you get pregnant again, scarring is normal, somtimes they remove scar tissue and sometimes if it is not in the way they leave it. If it still concernes you just keep asking you doc as many questions as you can think of, somtimes reading books can cause more harm than good especially if you have it in your mind already that whatever it is is not good to begin with. I would not worry, being that it was your first one and all, and I am assuming there wasn't any complications, wich sometimes that don't matter either, my first child was born by emergency c-setion, and I was opened pretty big, hip bone to hip bone that is where my first scar line ends. I was VERY nervous after that, and nothing ever went wrong. good luck and don't be afraid to have another baby by no means.