My sister is having trouble getting pregnant as well. She isn't doing the fertility shots but she is taking some sort of fertility which the details have slipped my mind. But besides vitamins and seeing a fertility doctor she has been told if she loses weight (she is over weight) and keeps her stress level down it helps her chances.

I think seeing a doctor could help you pinpoint specific tactics to follow yourself but I think just having a healthy, happy lifestyle will help your body relax and concentrate on making that baby!