At 28 weeks of gestation, a developing fetus is about the size of a large eggplant, measuring around 14.8 inches long and weighing approximately 2.2 pounds. At this stage, the fetus is rapidly gaining weight and developing essential body systems, including the lungs and brain. During this time, the mother may experience physical changes such as increased fatigue and back pain. Regular prenatal check-ups are important to monitor the health of both the mother and the fetus, ensuring that any potential issues are addressed promptly.