I am sorry for your sadness. I also had difficulty getting pregnant after the birth of my son and went through a time when I had almost no bleeding, just spotting some months. After vitamins my period seemed to come back but was much different, lighter. I read the book "Taking Charge of Your Fertility" and got pregnant the first month using the methods in the book. It teaches you to chart and understand your cycles (maybe your body is just readjusting hormonally). Don't give up. If too much time goes by, you may want to see a fertility specialist who can rule out any physical problems. Try this book first! Good Luck!
stress is a big factor so when you do concieve don't let anything or any make you upset.
good luck trying to concive
i can not tell you that the abortions causing the probs, but i can tell you that sometimes it just takes time. a healthy person only has a very small chance of getting preg each month. with your periods being irrgular could mean your ovulating irregular. try start charting your cycles and cm to try to figure out when your ovulating and just keep trying. good luck