Most experts suggest at least one year for women younger than age 35. However, women aged 35 years or older should see a health care provider after 6 months of trying unsuccessfully. A woman's chances of having a baby decrease rapidly every year after the age of 30.Some health problems also increase the risk of infertility. So, women should talk to a health care provider if they have-
Irregular periods or no menstrual periods.
Very painful periods.
Endometriosis.
Pelvic inflammatory disease.
More than one miscarriage.
It is a good idea for any woman and her partner to talk to a health care provider before trying to get pregnant. They can help you get your body ready for a healthy baby, and can also answer questions on fertility and give tips on conceiving.