Why am I not pregnant?!

I had my Pap screening done last week. I also asked my dr what my chances of getting pregnant at my age were and he had me do an AMH test. He called earlier this morning to give me my results. My pap is good and my AMH reserve is quite high for my age! So why am I not pregnant?!

Please ladies, any thoughts, advice or anything you got for me. Hubby and i have been trying for the past 2-3 years with a chemical pregnancy 2 years ago. Nothing else since then.