You should talk to your doctor about your fertility if: 
•    You are younger than 35 and have not been able to conceive after one year of frequent sex without birth control. 
•    You are age 35 or older and have not been able to conceive after six months of frequent sex without birth control. 
•    You believe you or your partner might have fertility problems in the future (even before you begin trying to get pregnant). 
•    You or your partner has a problem with sexual function or libido. 
Happily, doctors are able to help many infertile couples go on to have babies.