Is this normal?

Patient's question:

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From Henan,


Treatment history and effects:
My husband and I had sex on the 7th, and by the 18-20th, I started experiencing nausea symptoms. On the 22nd, my period didn't come, and a pregnancy test confirmed I was pregnant. I want to ask, is it normal to have nausea symptoms as early as 10 days into pregnancy?

Doctor's answer:

Medical Analysis: Hello, it is not common to have nausea in the first ten days of pregnancy; pregnancy symptoms usually do not appear this early.
Recommendation: The duration of pregnancy is calculated from the first day of the last menstrual period. Normal pregnancy symptoms typically begin around the 40th day of pregnancy.