Why is the due date delayed by two weeks? Is it related to the baby being small? Accurate or not

Patient's question:

No

Doctor's answer:

Hello, generally a delay or advance of one week in the menstrual cycle is considered normal. In the current situation, you can wait and see. If it still hasn't arrived after another week, you can take an early pregnancy test. If it's not pregnancy, it could be menstrual irregularity, and you can take Wuji Baifeng Pills or traditional Chinese medicine for regulation. If necessary, hormone-based artificial cycle treatment can be used.