Fertility is defined as the natural capacity to conceive a child. However, fertility does not come easily to everyone. Fertility isn’t only a female health issue. Both men and women can experience infertility. Many causes of infertility are “silent” and don’t have obvious symptoms.
However, the following signs might indicate a fertility issue and may signal a call to your doctor: 

• You are 35 or older and you’ve been trying to get pregnant for six months with no success.
• You are younger than 35 and have been having unprotected sexual intercourse for one year without getting pregnant.
• You have had two or more successive pregnancy losses. 
• You have any risk factors for infertility.

The most common fertility issues are:

• Irregular menstrual cycles
• Usually light or heavy bleeding and bad menstrual cramps
• Unusually heavy periods or abnormal menstrual bleeding.
• Pelvic pain or pain during sexual intercourse.
• Sexual dysfunction ( including erectile dysfunction or low libido)