I have been breastfeeding for 2 years now. I just got my cycles back at 23 months. There is a wonderful book called "Breastfeeding and Natural Child Spacing". I just read it recently and now I know why I successfully avoided getting my periods back. I had been doing everything that the book said you need to do to continue amenorrhea (non-ovulatory cycles). It talks about 7 steps: including no pacifiers, nursing on demand, sleeping with baby and nursing at night. I also believe no pumping is important.
I also read a wonderful book called "Taking Charge of your fertility" you can use natural techniques to know when you are fertile, and simply abstain for the few days when you do ovulate.
I have heard that these 2 methods combined are about 99% accurate for birth control. Even the pill doesn't have that kind of statistics!! And using these techniques will take about as much time as popping a pill in your mouth!!
I used the birth control pill for 15 years and recently heard that it can cause an abortion, because it does not always prevent you from ovulating. It is possible to ovulate and to have the egg fertilized. The pill does thin the lining of your uterus, so that the fertilized egg is not able to implant, but at that point, conception has occured, and the fertilized egg is then "aborted".
So, I have been looking for alternatives to the pill. I think I have found it in these books!!!! I have 2 extra copies of the "Breastfeeding and Natural Child Spacing" if you want one, I'll throw it in today's mail. Just send me an email: firstname.lastname@example.org
I think I paid $8 for it.
Let me know if any of this sounds interesting to you. I have tons more info.