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Tu Bebé a las 16 Semanas

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

A las 16 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
11.6 cm / 100 grams
Tu Bebé es del Tamaño de
Aguacate
Hito
Función cardíaca
Síntomas
Dolores de espalda y 'Brillo del embarazo'.

Transforma tu Ecografía de la Semana 16

Tu Ecografía de la Semana 16

Nuestra IA analiza suavemente los datos de tu ultrasonido de la semana 16 para predecir posibles rasgos faciales.

Generar Foto de Mi Bebé

A Closer Look at Week 16

Your baby is now the size of an avocado, and their tiny heart is a powerhouse. At 16 weeks, this organ — no bigger than your thumbnail — is pumping approximately 25 quarts (about 24 litres) of blood every single day. The circulatory system is fully functional, with blood flowing through a network of blood vessels that, if laid end to end, would already stretch several metres.

On the surface of the scalp, a pattern is forming that will determine where hair grows and which direction it falls. While the actual hair follicles haven't produced visible hair yet, the blueprint is being laid down. Whether your baby will have their father's curls, their mother's straight hair, or something entirely their own is being decided at a genetic level right now.

Many mothers begin to experience the famous 'pregnancy glow' around week 16. This isn't a myth — increased blood volume gives your skin a rosy, flushed appearance, and higher hormone levels stimulate oil production, giving your face a dewy shine. Of course, that same oil production can also cause breakouts, so don't worry if your skin feels more like a teenager's than a glowing mother-to-be.

This is around the time when some mothers — particularly those who have been pregnant before — might feel the first flutters of fetal movement, known as quickening. These movements are often described as bubbles, light tickles, or a gentle fluttering sensation. First-time mothers may not recognise them until a few weeks later, and both timelines are completely normal. If you have experienced backaches, gentle prenatal yoga or swimming can help strengthen your core and relieve pressure on the lower spine.

Ultrasonido a las 16 Semanas: Qué Esperar

Es común tener un ultrasonido alrededor de la semana 16.

Perspectivas del Ultrasonido: Semana 16

  • Hito: El corazón bombea unos 25 cuartos de galón de sangre cada día.
  • Consejo Pro: Pronto podrías sentir los primeros movimientos.

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