Searching for a pregnancy guide that goes week by week? You're fortunate! We have a tonne of information on every week and trimester that has been authorized by experts, including updates on your developing baby and changes you should anticipate for yourself.

Thousands of articles, beautiful fetal development videos, and practical resources like our Due Date Calculator and Baby Names Finder are all available. Get all of this and more with our free pregnancy app, and connect with other soon-to-be parents in our online community. Go for it, and congrats!

2 weeks pregnant

Are you pregnant this week?

Although you are not pregnant now, you will be two weeks pregnant if you become pregnant this week. This is because, technically, the first day of your period is also the first day of your pregnancy, as medical professionals use the information from your most recent menstrual cycle to estimate your due date. Conception occurs approximately two weeks after the start of your cycle, since you ovulate approximately two weeks after that.

The best time to conceive

The three days before ovulation are the most fertile for you. Changes in your basal body temperature, breast discomfort, moderate cramps, and increased vaginal discharge are all indicators that you might be ovulating.

Recognizing ovulation

Use our ovulation calculator to find out when you are most fertile and increase your chances of getting pregnant quickly. Ovulation test strips can also be used to determine the days on which intercourse (or insemination) is most likely to result in pregnancy.

Baby development at 2 weeks

The lining of your uterus thickened over the last several days in response to an increase in progesterone and estrogen, which helps nourish a fertilized egg. Concurrently, eggs have "ripened" in fluid-filled sacs called follicles inside your ovaries.

An egg emerges from its follicle during ovulation and travels from your ovary into a fallopian tube. It's not necessary for ovulation to happen in the middle of your cycle. For instance, in women who have a 28-day cycle, it might occur at any point between days 9 and 21.

3 weeks pregnant

Taking a pregnancy test

By the end of this week, you may be able to get a positive pregnancy test. Pregnancy tests work by detecting the presence of a hormone called human chorionic gonadotropin (hCG) in your urine. Some home pregnancy tests claim to detect pregnancy as early as five days before you miss your period, but it's best to wait until the first day of your missed period for accurate results. If you test too soon, you may get a false negative pregnancy test or an unclear result like a faint line.

Implantation

Your developing blastocyst has travelled down the fallopian tube and is starting to implant itself in the lining of your uterus. At this time, 15 to 25 percent of women experience implantation bleeding, which is a light bleeding that happens about six to 12 days after conception. You may feel implantation cramps as well.

Early pregnancy symptoms

Most women don't feel anything until they've missed a period, but you may notice bloating, cramping, or spotting this week. Your breasts may also be more tender than usual and you may have a heightened sense of smell, one of the earliest pregnancy symptoms. So if your partner, your house, or your dog suddenly smells different to you, thank your surging hormones.

4 weeks pregnant

Pregnancy testing

If you haven't already, test now to confirm you're pregnant. For the most accurate results, wait until a few day after you miss your period before you take a pregnancy test, use your first morning pee so hCG levels are more concentrated, and follow the directions on your test carefully. If you get a negative pregnancy test but your period hasn't come, wait a few days and test again.

Your due date

Our Due Date Calculator can determine your due date based on the date of your last menstrual period or the date of conception. Keep in mind that a due date is just a guess – only 1 out of 20 women actually delivers on her due date. You're just as likely to go into labor any day during the two weeks before or after.

From blastocyst to embryo

Your baby-to-be will soon transform from a ball of cells called a blastocyst to an embryo the size of a poppy seed. (Once your amniotic sac forms, 10 to 12 days after fertilization, your baby becomes an official embryo.) Over the next six weeks, your baby's nervous system, connective tissue, and organs will start to develop.

5 weeks pregnant

Feeling pregnant?

You may be growing more aware of early pregnancy symptoms, including fatigue, achy or swollen breasts, nausea, and the need to pee more often.

Announcing your pregnancy

There are no hard and fast rules about when to announce your pregnancy. Many expecting parents wait until late in the first trimester, but it's up to you.

Having twins

The likelihood of twins is about 3 out of 100 for most people, but chances are as high as 30 percent if you had certain fertility treatments. Women typically discover they're having more than one baby during an ultrasound in the first trimester.

6 weeks pregnant

Hearing your baby's heartbeat

Your baby's heart isn't fully developed, but cells in the heart tube have started beating fast, around 160 times a minute. You may hear the sound this week if you have an early ultrasound.

Morning sickness relief

It's counterintuitive, but eating small meals throughout the day can help you keep nausea at bay. Snacking on bland foods, drinking ginger tea, and taking certain medications can also relieve morning sickness.

Is bleeding normal?

One in four women have some bleeding during this trimester. If you do, call your healthcare provider and get it checked out. Spotting or light bleeding is probably from something minor, but it could also be a sign of a serious problem, such as an ectopic pregnancy, a miscarriage, or problems with the placenta.

7 weeks pregnant

Your baby takes shape

Your baby's little features – eyes, nose, mouth, and ears – are starting to look more defined. Arm and leg buds are growing longer.

Testing decisions

First trimester prenatal testing options include the NIPT blood test, the NT ultrasound, and CVS. If you’re having trouble deciding which tests are right for you, talk to your healthcare provider and other people you trust.

Foods to skip

Some foods to avoid now : Swordfish, cold deli meats, raw oysters, homemade cookie dough, bean sprouts, extra-large coffees, unpasteurized juices, and queso fresco.

8 weeks pregnant

Your baby's fingers and toes

Your baby's hands and feet – which look like paddles – are sprouting webbed fingers and toes. Nerves, bones, and muscles are developing inside your baby's tiny limbs.

Breast changes

Your breasts may be tender and swollen by now. If your old bras are feeling tight, buy a few good maternity bras for support.

Pregnancy and work

If you work with other expecting moms or people with young children, you may want to ask for their support and advice on being pregnant at work.

Your baby registry

It's not too soon to check out Registry Builder, which finds the best baby registries for you and helps you manage them in one place.

9 weeks pregnant

Your baby's body

Your baby has all the essential body parts now, including elbows and knees. On your baby's face, the upper lip, nose, and eyelids have formed. And your baby's tiny toes are visible!

Warning signs of a pregnancy complication

Lower back pain, vaginal bleeding or spotting, and persistent itching are among the pregnancy symptoms you shouldn't ignore. Always reach out to your doctor or midwife when you have a concern – that's what they're there for.

Feeling exhausted?

Not only does it take a lot of energy to make a baby, but pregnancy brings all sorts of sleep disturbances, including nausea, heartburn, and a frequent need to pee. Try to nap when you can, and consider investing in a good pregnancy pillow if you're having trouble getting comfy in bed.

10 weeks pregnant

Hearing the heartbeat

You may hear your baby's heartbeat on a fetal Doppler during your next prenatal visit. It's much faster than an adult heartbeat – it sounds like galloping horses. You may want to take your phone out and record it.

NIPT test

You can take the NIPT blood test (short for noninvasive prenatal testing) this week. It screens for Down syndrome and a few other conditions, and can tell you whether you're having a boy or a girl. Be sure to tell your provider if you'd rather not find out!

First ultrasound

More and more doctors are doing ultrasounds for their patients during the first trimester – as early as 6 to 10 weeks. Your provider may want you to have an early ultrasound if you've had a previous pregnancy complication, such as a miscarriage or ectopic pregnancy. At this early point in pregnancy, you'll probably have a transvaginal ultrasound.

11 weeks pregnant

When you'll feel kicks

Your baby is busy somersaulting and stretching, but they're still too small for you to notice it. You probably won't feel your baby move until you're at least 16 weeks pregnant.

If you're starting to show

Create a time-lapse record of your pregnancy by documenting your growing bump every week. You can take selfies or ask your partner or a friend to take photos.

Sharing your news

If you haven't spilled the beans yet, start thinking about how you'll let family and friends know you're expecting. Pregnancy announcements range from a group text message to an elaborately staged photo or big reveal.

12 weeks pregnant

Your growing uterus

Your uterus has grown to the size of a grapefruit! Your healthcare provider can now feel the top of it (the fundus) low in your abdomen, above your pubic bone.

Miscarriage rate drops

If you've been worried about miscarriage (like many expecting parents), here's some happy news: The risk drops significantly as your pregnancy progresses. Once you've had a first prenatal visit and seen or heard your baby's heartbeat, the chance of miscarriage is very low.

Your baby is fully formed

All of your baby's vital organs and body parts are in place. They'll continue to develop throughout your pregnancy.

13 weeks pregnant

Fading first-trimester symptoms

As you cruise into the second trimester, you may get some relief from early pregnancy symptoms such as tender breasts, fatigue, food aversions, morning sickness, and the constant need to pee.

Breastfeeding prep

You can't feel it, but your breasts may have already started making colostrum, the nutrient-rich fluid that feeds your baby for the first few days after birth, before your milk starts to flow. Later in pregnancy, your breasts may leak a little colostrum.

Making a baby registry

Our Registry Builder will help you keep all your baby registries organized, and there's only one link to send friends and family.