Your baby is now 6 months old. He is now about 11 inches long and weighs about 660 grams. His heartbeat can now be heard if someone places their ears close to your belly! His spine gradually develops and his body is now proportionate making him leaner-looking. His senses are now developed. He can hear your heartbeat, and react to sounds beyond the womb. He can now differentiate between sweet and bitter tastes. He can even respond to your touches by contracting his muscles, turning his head and clenching his fists.