This machine does everything it says it will, however I have been using it for 5 months now and I'm still not pregnant. I know I'm ovulating as the machine is telling me I'm getting peak days,I have been pregnant previously and have no fertility issues. I read so many reviews from people on here who used it for one month and then they're pregnant. I just wanted to balance it out because I've always had regular cycles, and I had a pretty good idea of when I was ovulating before I started using this machine, therefore I suspect many of the reviews from people getting pregnant straight away perhaps didn't have regular cycles, or were ovulating at a different time to when they thought. Not that it means the machine isn't great for those people, but for me it doesn't really seem to be helping!