The Rainbow Mermaid Tail. Our most famous mermaid tail ever. Brilliant colors of the rainbow are the backdrop to shimmering metallic water stripes. Durable water-proof fabric with 4-way stretchability. Perfect for exercise and play. The rainbow mermaid tail has to be seen in person to be fully appreciated.
A: Your baby's ears begin to grow when you're about eight weeks pregnant and are completely formed by about 24 weeks. But your baby can start hearing her first sounds -- like your heartbeat or blood whooshing through the umbilical cord -- around 18 weeks, when the bones of the inner ear and the nerve endings from the brain are developed enough. She may even be startled by loud noises!
Month 3. 1  After 8 weeks as an embryo, the baby now is called a fetus.. 2  The fingers and toes have soft nails. 3  The mouth has 20 buds that will become baby teeth.. 4  You can hear your baby's heartbeat for the first time (10 to 12 weeks) using a special instrument called a Doptone.