very Sore boobs after miscarriage

it’s been 2 weeks since I miscarried at 5 weeks but my boobs are so sore and heavy and my nipples are still so sensitive. by Tuesday my levels were only at 15 which my doctor said they consider that a complete miscarriage. but could my boobs be sore cause my period is on its way ALREADY?!!

My doctor said I probably wouldn’t get another period till Late august early September.. usually my boobs don’t start hurting till 2 days or a day before my period.

Do miscarriages change your cycle and the heaviness of your periods and increase your symptoms?