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Baby’s 2nd Trimester Development



Dr. O’Connor

Listen closely and you can hear your baby’s heartbeat, which is very fast compared to yours and mine.

During the mid-stages of your pregnancy, your baby’s major systems are continuing to develop. By the end of the fourth month, your baby is four inches long. She’s beginning to swallow and suck, and her body is now growing faster than her head. Her fingers and toes are well developed, and the buds of her teeth are starting to show up.

At the end of the fifth month your baby has gone through quite a growth spurt, and is now eight to 10 inches long. Her body is covered with a downy covering called “lanugo” and her hair is beginning to grow on her head. She’s even starting to grow eyelashes and eyebrows. At this point, you may be able to feel her moving within you!

By the end of your sixth month, your baby is approximately 13 inches long and weighs almost two pounds. Her fingerprints can be seen, and her skin is very thin since she has not yet built up any fat. Her eyes are starting to open!