At five months of pregnancy (roughly 20 weeks), your belly has grown enough that the top of your uterus sits right at your belly button. The baby inside is about 10 inches long from head to toe and weighs around 10 ounces, roughly the size of a banana. This is a milestone month: your body is visibly pregnant, the baby is developing recognizable human features, and you’re likely feeling real movement for the first time.
What Your Body Looks Like
The most obvious change is your belly. At 20 weeks, the top of the uterus (called the fundal height) reaches your navel, and from this point forward, it climbs about one centimeter per week. For many people, this is when the pregnancy becomes hard to hide under clothing. Your belly may look round and firm rather than soft, though shape varies widely depending on your build, muscle tone, and whether this is a first pregnancy.
Skin changes are common by now. A dark vertical line called the linea nigra often appears running from the pubic bone to the belly button, becoming visible around 20 weeks in most people. The same hormonal shift causes it: the placenta produces a hormone that increases melanin throughout your body. That’s why your nipples may look darker, and some people develop melasma, brownish patches on the cheeks, forehead, or upper lip. These changes are temporary and typically fade after delivery.
Weight gain by month five usually totals around 10 to 12 pounds for someone who started pregnancy at a normal weight. The recommended pace during the second trimester is about one pound per week. Your breasts are fuller, your hips may feel wider, and you might notice mild swelling in your hands or feet, especially later in the day. Maternity clothes usually become a necessity around this time if they weren’t already.
What the Baby Looks Like
At five months, the baby looks unmistakably human. Fingers and toes are fully formed, complete with tiny fingerprints. Eyebrows are filling in, and fine hair may be growing on the scalp. The facial features, including the nose, lips, and ears, are distinct enough to be recognized on an ultrasound image.
The baby’s entire body is covered in a thin layer of soft, downy hair called lanugo, which develops between 16 and 20 weeks. Lanugo serves a practical purpose: it helps a waxy, protective coating called vernix stick to the skin. Vernix acts like a barrier, keeping the baby’s delicate skin from being irritated by the amniotic fluid it floats in. Both lanugo and vernix will mostly shed before birth, though premature babies are often born with visible traces of both.
The baby’s skin is still thin and somewhat translucent, with blood vessels visible underneath. It appears wrinkled because the baby hasn’t yet built up the layer of fat that will fill out its frame in the third trimester. The eyelids are fused shut but will open within the next few weeks.
Movement You Can Feel
Month five is when most pregnant people feel their baby move for the first time, a sensation called quickening. It typically happens between 16 and 20 weeks, though first-time mothers often notice it closer to the 20-week mark. The movements are subtle and easy to miss or mistake for gas.
People describe quickening in a variety of ways: fluttering like a butterfly, tiny pulses or taps, bubbles popping, light rolls, or small muscle spasms. You’ll usually feel it low in your belly, near your pubic bone. At this stage, the baby is still small enough that movements come and go unpredictably. You won’t feel a regular pattern yet. That comes later, around 28 weeks, when kick counts become more meaningful.
What’s Developing Inside
The baby’s internal organs are becoming functional. The kidneys are producing urine, which contributes to the amniotic fluid. The digestive system is practicing: the baby swallows amniotic fluid and processes it through the intestines. The heart, which has been beating since about six weeks, is now strong enough that its chambers and valves can be examined in detail on ultrasound.
Hearing is beginning to develop, though it’s not fully online yet. The structures of the inner ear are forming, and the earliest responses to sound start around 23 weeks. By the end of this month, the baby is on the cusp of being able to detect low-frequency sounds like your heartbeat, blood flow, and the rumble of your voice. Full auditory responsiveness develops gradually over the next several weeks.
The 20-Week Anatomy Scan
Month five is when most people have their mid-pregnancy anatomy scan, a detailed ultrasound typically performed between 18 and 22 weeks. This is the most comprehensive ultrasound of the entire pregnancy, and for many parents, it’s the first time they get a good look at their baby’s face, hands, and feet.
The scan is thorough. The technician examines the baby’s brain structures, the shape of the skull, and facial features including the eyes, nose, upper lip, and jawline. They check the heart chamber by chamber, verifying that the four chambers are the right size and that blood is flowing correctly through the valves and major vessels. The spine is imaged along its full length in multiple angles, and every long bone in the arms and legs is measured individually. The kidneys, stomach, bladder, and umbilical cord insertion point are all evaluated.
Beyond the baby, the scan also looks at the placenta’s position (checking whether it’s covering the cervix), the amount of amniotic fluid, and the length of the cervix. If you want to know the baby’s sex, this is usually the appointment where it can be determined, though it’s entirely optional. The whole scan takes roughly 30 to 45 minutes, sometimes longer if the baby isn’t in a cooperative position.
What Five Months Feels Like Day to Day
For many people, month five falls in the sweet spot of pregnancy. The nausea and exhaustion of the first trimester have usually faded, but the heaviness and discomfort of the third trimester haven’t arrived yet. Energy levels are often higher than they’ve been in months.
That said, the growing uterus is starting to make its presence known in other ways. As it expands, it pushes your intestines and stomach upward, which can trigger heartburn or acid reflux even if you’ve never experienced it before. Some people notice they get out of breath more easily, not because anything is wrong with their lungs, but because the uterus is beginning to press against the diaphragm. Round ligament pain, a sharp or aching sensation on the sides of the lower belly, is common as the ligaments supporting the uterus stretch to keep up with its growth.
Nasal congestion is another surprisingly common symptom around this time. Increased blood volume causes the mucous membranes in your nose to swell, leaving you feeling stuffy without actually being sick. Back pain, leg cramps, and trouble sleeping on your back are also beginning for many people at this stage, all related to the shifting center of gravity and increased weight in your midsection.