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Crucial Development: Your Baby in the Fifth Week of Pregnancy

By the fifth week of pregnancy, your baby has reached a considerably larger size and the first defined structures are forming. The neural tube, which will become the brain and spinal cord, is already present, and the heart begins to beat in a rudimentary way. The sprouts of the extremities also appear, which will become the arms and legs. This is an exciting time where the fundamentals of physical development are taking shape, preparing for more complex growth in the coming weeks.

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The images and descriptions of your baby's development from week 1 to week 42 have been generated by artificial intelligence. Although they provide a close representation, they are not 100% accurate. To obtain accurate and personalized information about your baby's development, we recommend that you have an ultrasound and consult your doctor.