When is it possible to use a pregnancy test stick to check for a faint positive after a delayed period for several days?

Patient's question:

No

Doctor's answer:

Hello, generally a delay or advancement 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 herbal medicine for regulation. If necessary, hormone therapy for artificial cycles can be used.