Your Pregnancy Week by Week: Weeks 26-30

Week 26

Video Transcript

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Your baby grows and changes fast during your second trimester. Here's an inside peek at her amazing progress! By week 13, she's as large as a lemon -- about 3 inches long. And she's learning how to swallow by taking an occasional gulp of the amniotic fluid around her. Next week, she's a little bigger -- the length of a bell pepper. But by week 15, your baby could be the size of a large russet potato -- around 6 inches long. Her bones get harder and stronger during week 16. Now she can flex her arms and legs. Plus, her eyes can slowly move around behind closed lids. Next week she's the size of an asparagus spear -- almost 8 inches long. And she's on the move, doing flips and rolls. She can also make a fist and hold it to her mouth. Her face gets more defined during week 18. Those little eyelids, ears, and upper lip all come into sharper focus. Plus, she can hear sounds now. Your little one maybe over nine inches long -- about the size of an eggplant -- by week 19. Her lungs' main airways start to form. Something super adorable happens in week 20 -- your baby puts her feet and toes in her mouth. She also gets lots of sleep. Noise and movement can wake her up -- so keep it down, would ya? (Just kidding.) Next week your 10 and 1/2-inch tot is making strong kicks and turns. She's also forming brown fat for warmth. Your baby's genitals are completely formed around week 22. It's possible to see her eyebrows now, too. And soft, warm hair called lanugo covers her. By week 23, her fingers and toes look like tiny versions of yours -- and they've got fingerprints. Plus, your little one now has a secret talent: she can hiccup. At week 24 your baby is pineapple-sized -- about 12 1/2 inches long-- and 1 1/2 pounds. She could survive outside your womb if she was born now. Your little one knows the sound of your voice at week 25. She can recognize other familiar sounds too ... when she's not sleeping. She snoozes 80% of the time now. By next week, she knows how to suck -- and she'll probably try that skill out on her thumb. At the end of your second trimester on week 27, your little one is the length of an English cucumber -- over 14 inches long. And all that moving around is paying off, giving her more and more muscle tone.

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Baby: Your baby's hearing is fully developed. As the baby reacts to sounds, its pulse increases.Your baby will even move in rhythm to music. Lungs are still growing but are not yet mature. Patterns of your baby's brain waves appear like a full-term newborn. He or she also has patterns of sleeping and waking.

Mom-to-be: The baby's constant movements should be reassuring. You'll be putting on weight at the rate of about 1 pound per week now. You may be feeling some rib pain as your baby grows and pushes upward on your rib cage. The pressure may also be causing indigestion and heartburn. You may also feel stitch-like pains down the sides of your abdomen as your uterine muscle stretches.

Tip of the Week: If you're planning to return to work, you might want to begin checking out child care in your area. Nannies cost about $250 to $600 per week, group day care typically ranges from $125 to $200 per week, and home day care runs from about $75 to $125 per week. Stay open-minded about various child care arrangements.

Week 27

Baby: Your baby's hands are active. Thumb-sucking calms the baby and strengthens cheek and jaw muscles. Your baby can cry now.

Mom-to-be: You may see stretch marks as your uterus continues to expand. Most women have gained about 16 to 22 pounds by now. Your balance and mobility also may be changing as you grow larger.

Tip of the Week: During your last trimester, you should talk to your doctor or midwife about the delivery. They can let you know about signs to predict labor and how far apart the contractions should be before going to the hospital or birth center. It's also the time to begin interviewing pediatricians and to take care of other logistics, like pre-registration at the place where you'll give birth and a birthing plan, which is what you envision your labor and delivery will be like, if you plan to do one. This plan should be written in your patient record or attached to it in the form of a birth plan.

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Week 28

Baby: Your baby measures about 10 inches from crown to rump, or a total length of about 15.75 inches from head to toe, and weighs about 2.4 pounds. Brain waves show rapid eye movement (REM) sleep, which means your baby may be dreaming. Eyelids are opening. Branches of lungs are developing.

Mom-to-be: Your uterus extends well above your navel. As the baby gets bigger and stronger this month, you may be experiencing leg cramps and mild swelling of ankles and feet, difficulty sleeping, shortness of breath, lower abdominal achiness, clumsiness, or scattered Braxton Hicks contractions (hardening and relaxing of the uterus, like a rehearsal for labor). You may also be urinating more frequently again as the uterus continues to push on your bladder.

Tip of the Week: Even if your partner is planning on being with you in the delivery room, you might want to consider hiring a doula -- a professional labor assistant who provides support, but not medical aid, for the mother and her partner. Studies show that doulas can shorten a woman's labor and reduce the likelihood of needing pain medication, forceps or vacuum deliveries, or a cesarean section.

Week 29

Baby: Your baby's eyes are almost always blue and can distinguish bright sunlight or artificial light through the uterine wall. The baby is performing fewer acrobatics as conditions in the womb become more cramped, but he's still doing a lot of kicking and stretching.

Mom-to-be: You've probably gained 19-25 pounds. You still have some time to go, so you may want to remind yourself of signs of premature labor, including menstrual-like cramps or lower back pain, a trickle of amniotic fluid, or a watery pinkish or brownish discharge preceded sometimes by the passage of a thick, gelatinous mucus plug. Tell your health care provider ASAP if that happens -- they can sometimes stop labor from progressing with bed rest, medications, and possibly also hospitalization.

Tip of the Week: Your blood pressure typically may rise a little around the seventh month. Tell your health care provider if you get severe headaches; blurred vision; severe swelling of hands, feet, or ankles; or if you gain a lot of weight. These symptoms could signal the beginning of preeclampsia, a dangerous condition marked by high blood pressure and high levels of protein in the urine during pregnancy.

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Week 30

Baby: Your baby measures about 17 inches from head to toe and weighs about 3 pounds. Baby is growing plumper and beginning to control its own body temperature. Eyebrows and eyelashes are fully developed, and hair on the head is getting thicker. Head and body are now proportioned like a newborn's. Hands are now fully formed and fingernails are growing.

Mom-to-be: Your uterus is about 4 inches above your navel, and it may be hard to believe you still have about 10 weeks to go as the baby continues to push on your ribs. You may be feeling more discomfort in your pelvis and abdomen. You'll probably be gaining about a pound a week.

Tip of the Week: The membranes around the baby that contain the amniotic fluid are called the bag of water. They usually do not break until just before the onset of labor, but if they break prematurely, an infection becomes more likely, so call your health care provider immediately.

What's Happening Inside You?

Your baby changes position frequently and responds to stimuli, including sound, pain, and light. At the end of the seventh month, fat begins to be deposited on your baby.

28 Weeks

The amniotic fluid begins to diminish.

WebMD Medical Reference Reviewed by Traci C. Johnson, MD on September 12, 2016

Sources

SOURCES:
March of Dimes.
Mayo Clinic.com: "Fetal development: What happens during the third trimester?"

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