Pregnancy

Pregnancy by week

Learn about the stages of your pregnancy with our detailed week-by-week guide, detailing how your body is changing, plus the growth and development of your baby.

Your Pregnancy: 4 Weeks

Pregnancy by week

Your Pregnancy: 4 Weeks

It’s official! By about 4 weeks, your pregnancy can be confirmed by a blood or urine test and you’ll know for certain you have a baby on the way.

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Your Pregnancy: 5 Weeks

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Your Pregnancy: 5 Weeks

Even though you probably don’t feel pregnant, by 5 weeks, the building blocks of your baby’s life are being put in place.

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Your Pregnancy: 6 Weeks

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Your Pregnancy: 6 Weeks

From the top of her head to the bottom of her buttocks, your baby at 6 weeks is about two to four millimetres long. She’s tinier than a bean!

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Your Pregnancy: 7 Weeks

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Your Pregnancy: 7 Weeks

At 7 weeks, your baby will be having a growth spurt. She will start off the size of a BB pellet and finish it nearly double in size—as big as a green pea!

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Your Pregnancy: 8 Weeks

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Your Pregnancy: 8 Weeks

It may be hard to believe, but by 8 weeks, your developing baby’s organs, such as her heart and liver, are already in place inside her tiny body.

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Your Pregnancy: 9 Weeks

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Your Pregnancy: 9 Weeks

At 9 weeks, your baby is about the size of a green olive . From the top of his head to the bottom of his buttocks, he is about 22 to 33 millimetres long.

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Your Pregnancy: 10 Weeks

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Your Pregnancy: 10 Weeks

At 10 weeks, your baby is the size of a large cherry, but when it comes to shape, she looks more like a shrimp.

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Your Pregnancy: 11 Weeks

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Your Pregnancy: 11 Weeks

At 11 weeks, your baby has become quite an active little guy, kicking and swallowing away inside your womb.

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Your Pregnancy: 12 Weeks

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Your Pregnancy: 12 Weeks

Week 12 is the last week of your first trimester. Most of your baby’s organs are fully formed now and starting to function.

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Your Pregnancy: 13 Weeks

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Your Pregnancy: 13 Weeks

Welcome to your second trimester! At 13 weeks, your baby’s body has doubled in length since week 7, and he is as big as a large plum or a peach.

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Your Pregnancy: 14 Weeks

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Your Pregnancy: 14 Weeks

Congratulations, you’re officially into your second trimester! For many women (unfortunately, not all), week 14 means the end of morning sickness.

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Your Pregnancy: 15 Weeks

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Your Pregnancy: 15 Weeks

At 15 weeks, your baby about the size of your fist and just might be sucking his thumb. In fact, you may be able to see this in an ultrasound at this point.

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Your Pregnancy: 16 Weeks

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Your Pregnancy: 16 Weeks

Your baby’s fingernails are well developed by 16 weeks, and she is able to move her arms and legs. In fact, you may feel her move in the next few weeks.

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Your Pregnancy: 17 Weeks

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Your Pregnancy: 17 Weeks

How big is your baby at 17 weeks? Spread one of your hands wide open—your baby is about the same size.

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Your Pregnancy: 18 Weeks

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Your Pregnancy: 18 Weeks

By 18 weeks, it might look like your baby is bulking up! Over the last week, her weight has increased about 50 percent.

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Your Pregnancy: 19 Weeks

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Your Pregnancy: 19 Weeks

What’s your baby up to at 19 weeks? Intrauterine mischief! She may be sucking her thumb, doing somersaults or pulling and grabbing the umbilical cord.

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Your Pregnancy: 20 Weeks

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Your Pregnancy: 20 Weeks

Believe it or not, 20 weeks heralds the midpoint of your pregnancy. If you go full term, your pregnancy will be about 40 weeks long. You’re halfway there!

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Your Pregnancy: 21 Weeks

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Your Pregnancy: 21 Weeks

If you were able to see a picture of your baby around week 9, you might have thought he was “top heavy” because his head was so big. Not at week 21.

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Your Pregnancy: 22 Weeks

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Your Pregnancy: 22 Weeks

By 22 weeks, your waistline may have vanished, but you can probably still bend over easily, sit comfortably and walk without effort.

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Your Pregnancy: 23 Weeks

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Your Pregnancy: 23 Weeks

At 23 weeks, your baby’s skin is wrinkly, but her intrauterine wrinkles will disappear as she gains more weight.

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