 [ Symptoms ] what can i expect during week 39 of my pregnancy [ Disease ] baby  your baby is about 21 5 inches long from head to toe and weighs a little more than 7 pounds toenails and fingernails have grown to tips of toes and fingers muscles of your baby is arms and legs are strong and he is practicing lung movements baby is head has dropped into the mother is pelvis if he is head down which allows you to breathe a little easier mom to be  you are probably feeling quite large and uncomfortable your uterus has filled your pelvis and most of your abdomen pushing everything else out of the way your center of gravity has shifted so you may be clumsier than usual tip of the week  watch for signs of labor but do not get too obsessed it could happen soon or still be weeks away some differences between false labor and contractions false labor pains usually concentrate in the lower abdomen and groin while true labor pains may start in the lower back and may spread through the entire abdomen real labor also becomes stronger and more powerful as time passes