How long does the menstrual period delay after taking birth control pills?

Patient's question:

Here is the translation of your text into English:
"Lately, I've been taking birth control pills for several months, and my period seems to be irregular too. I want to ask how long can the period be delayed after taking birth control pills?"
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Doctor's answer:

How long does the menstrual period delay after taking birth control pills? Due to differences in individual physical factors, the duration varies. Short-term birth control pills should be considered as a normal way of lactation digestion, rather than a commonly used method. Short-term birth control pills mainly use hormones to promote the delay of menopause, thereby achieving the purpose of breastfeeding. Frequent oral intake can lead to endocrine disorders, estrogen level imbalances, menstrual delay or even amenorrhea, and in severe cases, it may cause infertility. Therefore, necessary oral intake must be cautious, and it is recommended to promptly undergo hormone tests at the gynecology department.