Week 9 of 40 · First trimester

9 Weeks Pregnant

The week your baby officially graduates from embryo to fetus.

Pregnancy › Week by Week › Week 9

At 9 weeks your baby is about the size of a grape, and has just reached a real milestone: this is the week the embryo is formally called a fetus, with the basic building blocks of the body now in place.

Size

A grape

crown to rump

Length

0.9 in

about 2.3 cm

Weight

0.07 oz

about 2 g

Your baby at 9 weeks, about the size of a grape

Your baby at 9 weeks

This is the week the embryo officially becomes a fetus. All the essential organs have formed and now begin to grow and refine.

Week 9 is a genuine turning point. The essential organs and structures have taken shape, and from here the work shifts from building to growing. Your baby is still tiny, but recognizably a little person in the making.

Movement. Tiny arms and legs have formed, and your baby is starting to make small, spontaneous movements. You will not feel a thing yet, since there is plenty of room and the baby is so small, but the motion is happening.

Heart and face. The heart has settled into a steady, strong rhythm and is beating away. Basic facial features are appearing: the eyes are formed though the lids stay fused shut for now, and the tip of the nose and the beginnings of the mouth are taking shape.

Growing details. Fingers and toes are still webbed but becoming more distinct, and the little tail from the earliest weeks has all but disappeared. Inside, the digestive system, muscles, and nerves keep developing steadily.

How big is your baby at 9 weeks?

About 0.9 inches (2.3 cm) crown to rump and around 0.07 ounces (2 g).

Measurements this early are taken crown to rump, from the top of the head to the bottom, because the legs are usually curled up. If you have a scan around now, this is the measurement your provider uses to confirm how far along you are.

Your body at 9 weeks

Nausea and fatigue often peak around now, and hormones can send your moods on a ride.

Pregnancy hormones are running high this week, and for many people that means the first trimester symptoms are at their strongest. Morning sickness, which can strike at any hour, tender breasts, and a bone deep tiredness are all common company. Mood swings are normal too, so be gentle with yourself if you feel weepy one minute and fine the next.

You may notice more vaginal discharge, which is normal as long as it is thin and mild, and your waistband might feel a little snug even though a real bump is still weeks away. That is usually bloating rather than the baby. Keep meals small and frequent, rest when you can, reach only for safe cold and flu medicine if you come down with something, and know that for most people the worst of this eases in the coming weeks.

What is normal, and when to call your provider

Mild cramping and light spotting can be normal in early pregnancy, but call your doctor or midwife the same day if you have any of these:

  • Heavy bleeding, especially soaking a pad, or passing clots
  • Severe or persistent abdominal or pelvic pain, or strong one sided pain
  • A fever over 100.4°F (38°C)
  • Severe vomiting where you cannot keep any fluids down, which can be more than ordinary morning sickness and is worth treating
  • Fainting, or dizziness that does not pass

Your week 9 checklist

  • Book or confirm your first prenatal visit if you have not seen a provider yet
  • Keep taking your prenatal vitamin with folate every day
  • Keep meals small and frequent and stay hydrated if nausea is lingering
  • Rest without guilt; growing a person is real work and fatigue is part of it
  • Jot down any questions to bring to your first appointment

Appointments and tests around 9 weeks

No tests are required this week, but your first prenatal visit may fall around now.

There is no routine screening scheduled specifically at 9 weeks, but this is often when the first prenatal visit happens. That appointment usually covers your health history, bloodwork, and a chance to ask everything on your mind. If you are interested in NIPT, the cell free DNA blood screen for certain chromosomal conditions, it becomes available from 10 weeks, so this is a good time to talk it through with your provider and decide what feels right for you. These are screenings, not diagnoses, and every one of them is optional.

A few things worth having on hand now

A note for your partner

Week 9 can be an invisible kind of hard. There is often no bump to see, but the person you love may be exhausted and queasy around the clock. The most useful thing you can do is take things off their plate: handle a meal, run the errand, keep the water bottle filled. Small, steady help matters more than grand gestures right now.

You are not alone this week

Nine weeks can feel like the longest stretch, deep in the symptoms and still weeks from telling most people. If you are tired, queasy, and a little on edge, that is not a sign anything is wrong, it is simply a very normal way to feel right now. Take it one day at a time.

9 weeks pregnant, common questions

Is my baby a fetus now?

Yes. Week 9 is generally when the embryo is formally called a fetus. The essential organs have formed, and the weeks ahead are about growth and refinement rather than building from scratch.

Why do I feel so much worse this week?

Pregnancy hormones tend to peak in this part of the first trimester, so nausea and fatigue often feel strongest around now. For most people the worst of it begins to ease over the next few weeks.

Can I feel the baby move at 9 weeks?

Not yet. Your baby is moving, but is far too small and has too much room for you to feel it. First flutters usually arrive somewhere between 16 and 22 weeks.

Should I have had an ultrasound by now?

Not necessarily. Some providers do an early ultrasound around this time, others wait until the 11 to 14 week window. If you have not had one, that is completely normal.

Sources

  1. American College of Obstetricians and Gynecologists (ACOG), first trimester care and screening guidance.
  2. Mayo Clinic, Fetal development: the 1st trimester.
  3. MedlinePlus, National Library of Medicine (NIH), Fetal development and prenatal care.

Medical disclaimer: This page is for information and education only and is not a substitute for professional medical advice. Every pregnancy is different. Always follow the guidance of your doctor, midwife, or qualified provider, and contact them with any concerns.