By the second trimester, your baby is now in its fetal stage and measures 2 1/2 to 3 inches in length. Fully formed the heart rate can be heard with a special instrument called a Doppler and just as adults, the fetal baby can experience the rapid eye movement (REM) sleep of dreams.
From 12 weeks, they can stretch, kick and leap around the womb - well before the mother can feel movement.
The body is more complex than ours. The fetal baby has several extra parts to his body which he needs only so long as he lives inside his mother. He has is own space capsule, the amniotic sac. He has his own lifeline, the umbilical cord, and he has his own root system, the placenta. These all belong to the baby himself and not to his mother, all developed from his original cell.
Did ya know?
Just as adults the baby at the fetal stage experiences the rapid eye movement (REM) sleep of dreams. Okay... why did you say you like REM's music?