Those little ears of yours are getting sharper and can hear very loud sounds, from a yapping dog to a jackhammer. Also by now, that fabulous face is almost full formed, complete with eyelashes, eyebrows and hair. You're gaining steadily at a rate of six ounces per week. Much of that weight comes from accumulating baby fat, as well as from growing organs, bones and muscle. I love you my little munchkin.