Am I infertile after chemo?

I had to undergo chemo and radiation for Hodgkin’s Lymphoma in my neck and under my arm when I was 19 and want to know if anyone can help me answer whether this would make me infertile. While going through both treatments, I never stopped having my period and, in fact, it might have regulated them. I had always been irregular before and then during the procedure it was MUCH heavier and like clockwork. Now that I have been in remission for five years, my period is back to normal. Not on time as it was, but I don’t skip whole months anymore like I used to before the chemo. I had no outward signs of the “early menopause” that the medical sites mention during the process. I'm now 25 and the married for a year in April and we are thinking about trying to have a baby in the next year or so. I never really thought about it in the past because it seemed so far off…but now that we are thinking about having kids, and with other friends of mine having children of their own, it’s starting to worry more and more. Does anyone know whether any of these things are signs of infertility or have any advice to give? I definitely would appreciate any help.