when is the 3rd trimester

The third trimester of pregnancy typically starts at week 28 and lasts until about week 40, or until delivery. This trimester covers roughly the final three months of pregnancy, consisting of weeks 28 to 40. During this time, the fetus grows rapidly and prepares for birth. The third trimester may include symptoms such as shortness of breath, false contractions, and needing to urinate more often. Prenatal visits usually become more frequent during this period to monitor the health of both the mother and fetus.