It's been 5 days since the miscarriage, why hasn't my period come yet?

Patient's question:

Patient Gender: Female
Detailed Condition and Purpose of Consultation: I am a mother of a 3.9-year-old child. After a miscarriage last month, it has been over 5 days since my period hasn't come. My menstrual cycle had been irregular for half a year before the miscarriage.
Current General Condition: My period has not arrived.
Medical History: None.
Previous Diagnoses and Treatment History and Outcomes: None.
Ancillary Examinations:

Doctor's answer:

Hello, if the early pregnancy test is accurate and negative, and your period has arrived, the chance of pregnancy is unlikely. It is recommended to rest more during your period, pay attention to keeping warm, avoid spicy and stimulating foods, drink more water, and pay attention to personal hygiene. Generally, doctors will advise women with postpartum consultation risks to maintain a balanced diet, stay away from spicy and cold foods. Additionally, patients should also create an environment conducive to emotional stability and stress relief. Wishing the patient a healthy delivery.