Menstruation advanced 4-5 days is how to return a responsibility, and half a year also did not have

Menstruation 4-5 days in advance, and half a year also did not get pregnant, indicating endocrine disorders, resulting in menstrual disorders of the female body and delayed pregnancy. May be that women usually take too many contraceptives or mood swings are relatively large, long time will lead to women is abnormal endometrial shedding.