Final answer:
The correct way to time the frequency of contractions in a pregnant woman is from the beginning of one contraction to the beginning of the next. This helps monitor the progress of labor.
Step-by-step explanation:
The correct way to time the frequency of contractions in a pregnant woman is from the beginning of one contraction to the beginning of the next.
During labor, contractions start and stop. Timing them from the beginning to the beginning of the next contraction gives an accurate measurement of the time between contractions.
For example, if one contraction starts at 1:00 PM and the next one starts at 1:05 PM, the time between contractions would be 5 minutes. This information can help monitor the progress of labor.