Headache and nausea, is it pregnancy?

Patient's question:

On hand, and on head, sweating, dizzy, want to vomit

Doctor's answer:

The first symptom of early pregnancy is a missed period, followed by successive symptoms such as dizziness, fatigue, sleepiness, chills, loss of appetite, varying degrees of nausea, food preferences, cravings for sour foods, aversion to greasy or strong odors, changes in appetite and taste, and in severe cases, vomiting. Some may also experience breast tenderness, darkening and tingling of the nipples and areolas, as well as frequent urination. These early pregnancy symptoms usually disappear on their own around the 12th week of pregnancy.