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Pregnancy Week by Week List

Weekly milestones for baby and mother-to-be

This page may include affiliate links
Riza Hope Molo
28th December 2016 in family & parenting
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Weekly Milestones
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Weekly Milestones
More Info
Photo Sample
Week
Done
My Experience This Week

  • First Trimester

  • 1
    You're actually not pregnant yet—the clock starts ticking from the first day of your last period.
    Week 1
  • 2
    You'll ovulate, and if egg meets sperm, you'll be on your way to pregnancy!
    You'll ovulate, and if egg meets sperm, you'll be on your way to pregnancy!Week 2
  • 3
    Your baby is a tiny ball – called a blastocyst – made up of several hundred cells that are multiplying quickly.
    Your baby is a tiny ball – called a blastocyst – made up of several hundred cells that are multiplying quickly.Week 3
  • 4
    Your fertilized egg, known as a zygote, is a ball of 32 cells that's about the size of a poppy seed.
    Your fertilized egg, known as a zygote, is a ball of 32 cells that's about the size of a poppy seed.Week 4
  • 5
    The ball of cells now resembles a tadpole and is as big as a peppercorn.
    The ball of cells now resembles a tadpole and is as big as a peppercorn.Week 5
  • 6
    Your baby's nose, mouth, and ears are beginning to take shape. You may be having morning sickness and spotting.
    Your baby's nose, mouth, and ears are beginning to take shape. You may be having morning sickness and spotting.Week 6
  • 7
    Your baby is now about the size of a small blueberry.
    Your baby is now about the size of a small blueberry.Week 7
  • 8
    Her arm buds, which formed last week, now look like paddles.
    Her arm buds, which formed last week, now look like paddles.Week 7
  • 9
    Your baby is already developing amazingly distinct facial features.
    Your baby is already developing amazingly distinct facial features.Week 7
  • 10
    As your pregnancy hormones increase, morning sickness may be worsening. Or, you may be ravenous 24/7.
    Week 7
  • 11
    Baby's developing a permanent set of kidneys.
    Week 7
  • 12
    Baby's arm and leg joints are now forming.
    Week 7
  • 13
    Your baby is about the size of a raspberry.
    Your baby is about the size of a raspberry.Week 8
  • 14
    His delicate facial features are becoming more refined, with his ears, upper lip, and the teeny tip of his nose all clearly visible.
    His delicate facial features are becoming more refined, with his ears, upper lip, and the teeny tip of his nose all clearly visible.Week 8
  • 15
    His eyelids will also take shape for the first time this week
    Week 8
  • 16
    Your baby is constantly moving, though you can't feel it.
    Week 8
  • 17
    Your doctor may look or listen for the baby's heartbeat with an ultrasound.
    Week 8
  • 18
    Your baby has graduated from embryo to fetus—and is now about the size of a cherry
    Your baby has graduated from embryo to fetus—and is now about the size of a cherryWeek 9
  • 19
    The digestive tract and reproductive organs are formed
    The digestive tract and reproductive organs are formedWeek 9
  • 20
    Reproductive organs are beginning to form now, along with some other key organs, like the pancreas and gallbladder.
    Week 9
  • 21
    Your baby is about the size of a kumquat and can stretch his spine.
    Your baby is about the size of a kumquat and can stretch his spine.Week 10
  • 22
    Her eyes and eyelids are more developed and her eyebrows are beginning to grow.
    Her eyes and eyelids are more developed and her eyebrows are beginning to grow.Week 10
  • 23
    Baby has working arm joints, and cartilage and bones are forming.
    Baby has working arm joints, and cartilage and bones are forming.Week 10
  • 24
    Baby's vital organs are fully developed and they're starting to function.
    Week 10
  • 25
    Baby's fingernails and hair are starting to appear too.
    Week 10
  • 26
    You may have aches and pains in your abdomen, as baby's putting a pressure on your organs, veins, muscles and ligaments.
    Week 10
  • 27
    Your baby is as big as a lime
    Your baby is as big as a limeWeek 11
  • 28
    Baby's fingers and toes aren't webbed anymore.
    Baby's fingers and toes aren't webbed anymore.Week 11
  • 29
    Tooth buds, hair follicles and nail beds are forming.
    Week 11
  • 30
    The fetus will start to inhale and exhale small amounts of amniotic fluid, which helps your baby's lungs to grow and develop.
    Week 11
  • 31
    Your cravings may run the gamut from cheeseburgers to chalk
    Week 11
  • 32
    Your baby is almost three inches long now.
    Week 12

  • First Trimester

  • 1
    You're actually not pregnant yet—the clock starts ticking from the first day of your last period.
  • 2
    You'll ovulate, and if egg meets sperm, you'll be on your way to pregnancy!
  • 3
    Your baby is a tiny ball – called a blastocyst – made up of several hundred cells that are multiplying quickly.
  • 4
    Your fertilized egg, known as a zygote, is a ball of 32 cells that's about the size of a poppy seed.
  • 5
    The ball of cells now resembles a tadpole and is as big as a peppercorn.
  • 6
    Your baby's nose, mouth, and ears are beginning to take shape. You may be having morning sickness and spotting.
  • 7
    Your baby is now about the size of a small blueberry.
  • 8
    Her arm buds, which formed last week, now look like paddles.
  • 9
    Your baby is already developing amazingly distinct facial features.
  • 10
    As your pregnancy hormones increase, morning sickness may be worsening. Or, you may be ravenous 24/7.
  • 11
    Baby's developing a permanent set of kidneys.
  • 12
    Baby's arm and leg joints are now forming.
  • 13
    Your baby is about the size of a raspberry.
  • 14
    His delicate facial features are becoming more refined, with his ears, upper lip, and the teeny tip of his nose all clearly visible.
  • 15
    His eyelids will also take shape for the first time this week
  • 16
    Your baby is constantly moving, though you can't feel it.
  • 17
    Your doctor may look or listen for the baby's heartbeat with an ultrasound.
  • 18
    Your baby has graduated from embryo to fetus—and is now about the size of a cherry
  • 19
    The digestive tract and reproductive organs are formed
  • 20
    Reproductive organs are beginning to form now, along with some other key organs, like the pancreas and gallbladder.
  • 21
    Your baby is about the size of a kumquat and can stretch his spine.
  • 22
    Her eyes and eyelids are more developed and her eyebrows are beginning to grow.
  • 23
    Baby has working arm joints, and cartilage and bones are forming.
  • 24
    Baby's vital organs are fully developed and they're starting to function.
  • 25
    Baby's fingernails and hair are starting to appear too.
  • 26
    You may have aches and pains in your abdomen, as baby's putting a pressure on your organs, veins, muscles and ligaments.
  • 27
    Your baby is as big as a lime
  • 28
    Baby's fingers and toes aren't webbed anymore.
  • 29
    Tooth buds, hair follicles and nail beds are forming.
  • 30
    The fetus will start to inhale and exhale small amounts of amniotic fluid, which helps your baby's lungs to grow and develop.