according to your ultrasound
findings two possibilities are there,
-as your ovaries are showing multiple follicles if that is because of poly cystic ovarian disease
your menstrual abnormalities are may be because of that,
-as your endometrial thickness is 1.3cm, which is uncommon during normal menstrual cycle there is possibility of pregnancy
so you wait for one more week and undergo ultrasound again which will possibly find out pregnancy.