Just keep trying,the most beatyfull thing you can do,and lok your next fertility window
Check out Toni Weschler's book Taking Charge of Your Fertility. Highly recommend!
its been a year. if you want to you can talk to your dr about how to increase your chances as well
Since it has been a year, I would definitely go to your doctor or a fertility specialist to ensure that everything is okay.
Good luck! :)