This week our baby weighs almost 2 pounds and is about 14.4 inches long with her legs extended. She can now open and close her eyes, and she sleeps and wakes at regular intervals. She may suck her fingers, and although her lungs are still immature, they would be capable of functioning — with assistance — if he were to be born prematurely. I should chalk up any rhythmic movement I may be feeling to a case of baby hiccups, which may be common from now on. Each episode usually lasts only a few moments, and isn't bothersome to her, so enjoy the tickle. With more brain tissue developing, our baby's brain is very active now.