When a woman fails to get pregnant after at least a year of trying, many factors may be involved. The most common causes of a woman’s infertility have to do with her ovulation cycle. A woman who has irregular menstrual periods is not ovulating properly, and this may be due to a number of conditions including polycystic ovary syndrome, primary ovarian insufficiency, blocked fallopian tubes, pelvic inflammatory disease, endometriosis, uterine fibroids and more. Other factors that may contribute to infertility include a poor diet, stress, smoking, age, sexually transmitted infections, being overweight or underweight, and excessive use of alcohol. Fortunately for couples who are trying to conceive without success, there are many potential treatment options including medications that stimulate ovulation, in vitro fertilization, surgical procedures, artificial insemination and fertility treatments using assisted reproductive technology.