Guide to Pregnancy by Week


When you're looking down the long road to motherhood, week 40 can look more appealing than week one. It can seem a long time to wait to feel that tiny fist wrapped around your finger. So what is week one really like, and how exactly can you tell you're one week along?

Like "one-week pregnant," two weeks along exists only in retrospect. That doesn't mean the second week of pregnancy doesn't matter, though. There's no baby yet, but there's a lot of preparation going on.

If you're trying for a baby, this is your big moment. Conception typically occurs during week three, which means you are not just technically pregnant, you're actually pregnant. At last, a microscopic ball of cells to call your own.

You're having the symptoms -- morning sickness, bloating, missed period -- but you aren't sure if you're really pregnant. Four weeks is about the right time to take the pregnancy test and get an accurate diagnosis. Why? Read on to find out.

In week five, your fetus is about the size of a sesame seed! You're popping folic acid and trying to fight off morning sickness. Here's what you and your partner should know about this early stage of prengnancy.

During week six of your pregnancy, those cravings and bouts of morning sickness are in full swing! The good news? You might be able to hear your baby's heartbeat. What else can you expect when your little one is a half-inch long?

By now, your baby is transforming from a featureless, c-shaped tube into a tiny creature with a head. What else can you expect during your seventh week of pregnancy?

While you won't be feeling it yet, your baby is actually starting to move around. What else can you expect from your eighth week of pregnancy?

You're two-thirds of the way through your first trimester and really starting to feel -- if not actually look -- pregnant. At this point, you may also be experiencing some unpleasant side effects. But what exactly is going on during week nine?

By Week 10, if you were to look closely at your baby, you'd notice she doesn't look like a tadpole anymore. Her embryonic tail, at the bottom of the spinal cord, has disappeared and her rapidly developing spinal nerves have become visible. What else can you see?

Hopefully your morning sickness has started to subside and your energy level has increased. You might even be starting to see that "pregnancy glow." But you will be experiencing some new changes ahead. Let's take a look.

The day comes when you take a drive without a pit stop and get through a day without getting sick. Hopefully first-trimester symptoms are starting to ease up in week 12, leaving plenty of room for a new set of sensory experiences.

In week 13, pregnancy is probably starting to be a whole lot more fun. Lots of women find the middle months to be the easiest, with fewer unpleasant symptoms and new reasons to be excited. So what should you expect in this banner week of pregnancy?

Now solidly in your second trimester, you're probably more excited than ever about your little bun in the oven. At 14 weeks, development is progressing at a breakneck pace. What's next?

You're rounding third on month four, and with just 25 waist-expanding weeks until the moment you've been waiting for, you might be feeling better than you have in some time. What should you expect in week 15?

This is a big week for baby mamas! You might find out your little one's gender, and you can also start feeling your baby's movements. Also, it's time to book that babymoon you've been dreaming about -- you deserve it.

Pregnancy is a strange and wonderful time at 17 weeks along. Sure, your gums are bleeding and you're dizzy all the time, but you've got life growing inside you! Find out what your little guy or gal is up to.

There are no breaks in the action when you're pregnant. It's week after week of miracles and heartburn. Week 18 is no exception. What's going on inside you?

By 19 weeks, you're probably starting to truly feel pregnant. It'll get worse before it gets better, but don't worry: As soon as you feel those tiny kicks, you'll forget it all.

You're about to enter your third trimester of pregnancy, and with all the changes happening in your life and your body, you might feel overwhelmed. Take a moment to relax while reading our guide to being 20 weeks pregnant.

At 21 weeks pregnant, your little bundle of joy will arrive in just a few more months! Here's a guide to what's happening in your body right now.

The second half of your second trimester can sometimes feel like the middle of a long road trip. What pleasant surprises does week 22 hold in store? Read on to find out.

Here are some of the things you might be feeling, thinking about and wishing your partner knew as you head into week 23 of your pregnancy. And yes, the skin on your belly actually will stretch a little more.

By the time you hit 24 weeks, the novelty might be wearing off. Still, you're nearing the home stretch, and believe it or not, this may be the most comfortable you feel until after your love bug arrives. So what do you need to know?

Hello, 25 weeks! You're halfway through month six, and your baby's body is taking leaps and bounds toward the first breath, the first cry and the first grip on your finger. Motherhood is close. But what comes first?

By week 26, your discomfort, anxiety and excitement are probably growing at similar rates. Baby is roughly, astonishingly, just 14 weeks off. So what should you prepare for now?

If, up to now, you've barely been showing, week 27 could be your entry into the "obviously pregnant" zone. You're getting so close -- what should you expect during this transition between the second and third trimesters?

You're in the third trimester now, and your baby bump has swollen to a baby boulder! If you haven't decorated your nursery or picked out a baby name, it's time to get cracking. We've got a few more hints for moms at 28 weeks.

While you might be experiencing less-than-pleasant things such as constipation and swelling in your hands and feet, take a look at the exciting developments happening with your baby during your 29th week of pregnancy.

Welcome to the big 3-0 -- your 30th week of pregnancy, that is. You've got about 10 weeks to go until your baby arrives, so let's take a look at what's happening during the homestretch of your pregnancy.

Fasten your seatbelts, ladies: While you may carry to 42 weeks (or, Lord help you, beyond), "full term" is just six weeks off. That means in a month and a half, you've got the green light to give birth to that tiny person you're carrying around.

Feel like you just might burst? Hang in there: At week 32, you've got as little as five weeks until you're full-term, and just eight until you enter "overdue." You're nearing the end. And the beginning. And that baby is huge.

What's the mind-body experience you'll have at 33 weeks? Every kick helps you count down to the day you'll deliver your little acrobat. The nursery's ready, but there are still some things to think about and some important preparations to make.

Though you're only six weeks from your official due date, you might feel like you're looking at the longest six weeks of your life. What can you expect in week 34 of your pregnancy?

At 35 weeks pregnant, you're well into the homestretch. Your baby is basically done growing, so all you have to do now is relax until he makes his arrival.

In your 36th week of pregnancy, it's easy to appreciate why gravid is another word for pregnant. See what you can look forward to as you gear up for the big day.

That baby is technically ready to go, and it could happen any minute now. So what are you experiencing at 37 weeks, and what's happening in that enormous belly of yours?

You've got two short, waddling weeks left, give or take, before your baby greets the world, and the excitement (and anxiety) might be keeping you up at night. So what are you experiencing in week 38?

Thirty-nine weeks down, only one or two more to go! Here's what's going on with you and baby during these final days of pregnancy.

You're having a baby any day now! We'll take you through the final preparation for the long-awaited event.

At 41 weeks pregnant, it's very possible your due date has come and gone. Read on for why your little bundle of joy could just not be ready to make an appearance.

So, your due date came and went, and you're still lugging around that passenger. How can someone so little be so stubborn?

Well, it's official: You're overdue, post-term, post-date or just plain sick of this miracle happening inside you. So what's taking that (not so) little one so long?