It’s a good idea to see a fertility specialist if you are under the age of 35 and have been trying to conceive for 1 year, or if you are over 35 and have been trying to conceive for 6 months. A fertility specialist will help establish why you are having trouble falling pregnant and/or miscarrying.  Once you are diagnosed, your doctor can suggest appropriate treatment. Age is a major factor in fertility, so the older you are, the sooner you should diagnose and treat a fertility problem.