Letting things happen "naturally" 

I went to the doctors about 6/7 months ago for general blood test, to check my iron levels, thyroid function etc. All back normal. But still no BFP! My partner is very hesitant to go to the doctors. He has a very relaxed   approached and says "it'll happen when its meant to happen" but I am beyond fed up now. Is this normal for 2 young healthy people to be trying for this long? What do you ladies recommend. Keep trying for a few more months or go back to the doctors? Any help/advice is appreciated. I am loosing the will to live!!!!