By the end of your seventh month of childbearing during the third trimester your baby will build-up their own body fat which may later on be utilized to live life from independently. Little one will probably be about 15 " in length and will weigh between 2-4 lbs .. Your little one will now often be completely capable to pick up all sorts of things taking place outside of the uterus. Baby might also start to respond to provocation including discomfort as well as brightness. In your 8th month of pregnancy in your third trimester your little one will mature to around 18 to 20 inches long and will weigh up to 6 lbs ..