Yes, it is quite normal for women not to have their periods, especially while nursing, after giving birth. A friend of mine is nursing her 15 month old twice a day, and she STILL hasn't had a period!
It is true, you're less likely to get pregnant, however, there is one caveat. You ovulate before you bleed. Thus, you could ovulate prior to having a period, and get pregnant before you've had your first period since birth. Something to keep in mind. Don't use breastfeeding as a form of birth control! I know a couple of women who have gotten pregnant that way!! There are plenty of birth control options for nursing mommies. I just had my IUD put in today, and I am nursing.
at 7:17 AM on Oct. 9, 2008