3D video baby update: Week 18

Reviewed by: HiMommy Expert Board

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5 min read

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Jun 23, 2025

Mom, I'm like a sweet potato (14.2cm, 190 grams)

My hearing is so developed that I not only hear sounds but also react to them - loud noises can make me move or increase my heart rate. Eyes are sensitive to bright light penetrating through abdominal walls, though eyelids remain closed. If I'm a girl, uterus and fallopian tubes are fully formed, and ovaries contain the maximum number of primordial egg cells - about 6-7 million, more than ever later in life. My skin is fully covered with vernix caseosa, a creamy substance that protects against maceration in amniotic fluid. Intestines begin producing meconium - first stools consisting of swallowed amniotic fluid, bile, and shed cells.

Remember mom, every child develops at their own pace and has their unique timeline. If you have any doubts about my development in your belly, consult with a doctor.