Patient's question:
Sure, here is the translation of the content you provided:```
No
```
Doctor's answer:
Generally, it takes about 9 months. The estimated due date can be calculated based on the last menstrual period: add 9 or subtract 3 from the month of the last menstrual period date to get the month of the estimated due date; add 7 to the day. If the lunar calendar day is used, add 14. You can calculate it yourself.