The second trimester of pregnancy starts at around 13 weeks and 3 days, which is just into the 14th week. More commonly, it is defined to begin at the start of week 14 and lasts until week 26 or 27, depending on the source. To summarize based on multiple sources:
- It usually starts around 13 weeks 3 days to 14 weeks.
- The second trimester ranges roughly from week 14 to week 26 or 27.
- It covers approximately months 4, 5, and 6 of pregnancy.
This period is often called the "honeymoon phase" of pregnancy since early pregnancy symptoms like nausea often subside, and many women feel better and more energetic.
