I know the medical profession consider "infertility" to be after a year of trying, but I don't think anyone could really put a time stamp on it either. I felt like a year was forever too, but obviously from other posts people think 3 months or 6 months is ltttc. But then there are those who have been trying for 5 or 10 years, or those that have been trying for 3 and don't think it's that long. It's a personal opinion I think really, and I'm sure everyone feels differently depending on how long they have been trying.