It can take a healthy couple up to a year to concieve, after that you will want to see your dr and and express your concerns. At that point they will start testing for infertility. Being that you are 34, I wouldn't waste much time and get to your dr. If they can't help you, then the next step is to see a Reproductive Endocronologist (RE), they specialize in infertility and fertility treatments.
Do you currently do any kind of charting your cycles? There is a great book called Taking Charge of Your Fertility and I highly recommend it to anybody trying to conceive.
in a point getting frustrated of no baby?