The second trimester of pregnancy occurs during which weeks?

• A. Weeks 14-16
• B. Weeks 18-22
• C. Weeks 23-26
• D. Weeks 27-29

Answer: (B)

In pregnancy time is divided into three trimesters, with the second trimester being the middle phase when the fetus continues rapid development and many diagnostic tests, like anatomy scans, are commonly performed. This middle period is typically placed around weeks 13 to 28. The window around weeks 18 to 22 sits squarely in that middle portion, making it a standard reference for describing the second trimester. Week 14–16 is earlier in the second trimester, 23–26 is toward the late second trimester, and 27–29 is edging toward the start of the third trimester. So the mid-second-trimester window that best represents this phase is 18–22 weeks.