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Tu Bebé a las 28 Semanas

Conectar con tu bebé antes del nacimiento es una experiencia mágica.

A las 28 semanas, tu bebé está creciendo rápidamente. Aunque el ultrasonido te da una preciosa visión médica dentro del útero, a veces puede ser difícil visualizar completamente sus rasgos.

Longitud y Peso
37.6 cm / 1 kg
Tu Bebé es del Tamaño de
Berenjena
Hito
Soñando
Síntomas
Ciática.

Transforma tu Ecografía de la Semana 28

Tu Ecografía de la Semana 28

Nuestra IA analiza suavemente los datos de tu ultrasonido de la semana 28 para predecir posibles rasgos faciales.

Generar Foto de Mi Bebé

A Closer Look at Week 28

Welcome to the third trimester! At 28 weeks, your baby weighs approximately one kilogram and is entering the home stretch of development. One of the most enchanting discoveries about babies at this stage is that they experience Rapid Eye Movement (REM) sleep — the sleep phase associated with dreaming. While we cannot know what a baby dreams about in the womb, the presence of REM sleep indicates that the brain is processing and consolidating the sensory experiences it has been collecting: sounds, movements, light, and touch.

Your baby now has eyelashes, which frame the eyes that opened for the first time just two weeks ago. These delicate lashes serve the same purpose as adult eyelashes: protecting the eyes from debris and helping to diffuse bright light. The eyes can now track light, and if a bright torch were shone at your belly, your baby might turn their head towards or away from it.

Sciatica — a sharp, shooting pain that radiates from the lower back down through the buttock and into the leg — affects many women in the third trimester. It is caused by the growing uterus pressing on the sciatic nerve, which runs from the lower spine through the pelvis and down each leg. Prenatal physiotherapy, gentle stretching, swimming, and applying heat or cold packs can help manage symptoms. Avoid sitting for prolonged periods, and when sitting, use a cushion or rolled towel to support the lower back.

Iron-deficiency anaemia is one of the most common nutritional deficiencies in pregnancy, and your healthcare provider will likely check your iron levels around this time. Symptoms include extreme fatigue, weakness, pale skin, and shortness of breath. If your levels are low, iron supplements may be recommended alongside iron-rich foods such as red meat, spinach, lentils, and fortified cereals.

Ultrasonido a las 28 Semanas: Qué Esperar

Es común tener un ultrasonido alrededor de la semana 28.

Perspectivas del Ultrasonido: Semana 28

  • Hito: ¡Bienvenida al 3er trimestre! El bebé tiene pestañas y puede soñar.
  • Consejo Pro: Revisa tus niveles de hierro.

Los ultrasonidos estándar son herramientas médicas increíbles, pero pueden ser abstractos. FirstGlimpse AI ayuda a cerrar la brecha.

Content Source

This article has been compiled using information from publicly available maternal health resources, including the WHO, NHS, and ACOG guidelines. This content is for general educational purposes only and should not replace personalised advice from your healthcare provider.

Last reviewed: March 2026