Your baby this week
Your baby now weighs about three pounds — roughly a kilo and a third, edging upward — and measures around sixteen inches long: about the size of a cabbage. A dense, leafy, surprisingly heavy cabbage, which your arms confirm every time you carry your belly up the stairs.
This week's headline is those eyes. Your baby can now open and close them, complete with blinking, and while the world in there is dark and cozy, the pupils can react to light — shine a bright light on your belly and some babies will turn toward the glow or give it a kick of commentary. Vision is still developing and will keep maturing after birth, but the equipment is installed and switched on.
Even sweeter: your baby's sleep has matured into recognizable cycles, including periods of rapid eye movement — REM sleep, the stage in which dreaming happens for you and me. Researchers can observe these REM periods in babies at this stage, so it's reasonable to say your baby may already be dreaming. Of what? Nobody knows — perhaps the muffled music of your voice, the rocking rhythm of your walk, the steady percussion of your heart. It's the only world they've ever known, and by every measure, it's a comforting one.
The brain, meanwhile, continues last week's construction boom: its surface is forming more of those characteristic grooves and wrinkles, giving it more room for the cells and connections behind every future skill. And a quiet costume change is beginning: the soft, downy hair called lanugo, which has covered your baby's body for warmth, starts to shed around now — because your baby is increasingly able to regulate their own temperature with growing fat stores. Under the skin, that fat keeps layering on, smoothing out the wrinkles and stocking up exactly what your baby will need to stay warm in the outside world. Muscles strengthen, lungs mature, and the kicks keep their opinions.
A word about bones and position, the backstage work of week 30: your baby's bones continue hardening steadily — all except the skull plates, which stay flexible by design for the birth journey and the brain growth still to come. And while your baby still has room to turn and explore, many are beginning to spend more time oriented head-down, the classic exit position. If yours is currently breech, sideways, or doing interpretive dance instead, take a breath: at 30 weeks, position is a weather report, not a forecast. There's space, there's time, and your doctor will track it with you at later visits.
Your body & symptoms: the crowded stage
Your side of the story, week 30 edition: your uterus now reaches several inches above your belly button, and the neighborhood is crowded. Shortness of breath continues as your diaphragm shares space; heartburn is a frequent evening visitor; and your digestive system, slowed by pregnancy hormones and physical pressure, may deliver constipation or the occasional dramatic gurgle at the worst possible moment. All normal, all temporary, none of them fun.
Also on the roster: back and pelvic aches; Braxton Hicks contractions that tighten and release irregularly; leg cramps and restless legs at night; mild swelling of feet and ankles, especially after long days; itchy belly skin as it stretches; and a bladder that seems to have shrunk to thimble capacity, thanks to your baby's fondness for it as furniture.
Mood-wise, many women notice a mix now: deepening excitement, waves of impatience, and a brain that increasingly runs on pregnancy — misplacing keys in the refrigerator is a well-documented third-trimester phenomenon and not a personal failing. Your checkups continue about every two weeks, with blood pressure, urine, growth, and heartbeat checks at each visit. Keep mentioning the ordinary stuff — sleep struggles, swelling questions, mood dips. Nothing is too small for the people whose job is this exact season of your life.
A few more guests at the week-30 gathering: tingling or numb fingers for some moms — a carpal-tunnel effect from fluid in tight wrist spaces, often worst at night; hemorrhoids or varicose veins for others, both courtesy of increased blood volume and pressure; and skin that alternates between glowing and itching like it can't decide. Gentle movement, position changes, fiber and water, and a doctor conversation if anything is truly troubling you — that's the comfort toolkit.
And one emotional footnote: many women find their dreams — the sleeping kind — turn cinematic now, full of babies, water, and journeys, partly because the lighter, more interrupted sleep of this stage lets you remember more of them. Enjoy the matinee; your mind is rehearsing, too.
Sleep in week 30: a comfort masterclass
Let's talk about the nightly negotiation: sleep. Between the belly, the bladder, the heartburn, and a baby whose dance party starts at 10 p.m., unbroken sleep can feel like a rumor. A few comfort strategies help many moms — these are comfort measures only, and if sleep problems ever feel severe or you're snoring heavily with pauses in breathing, mention it to your doctor, because that's worth a conversation.
Start with position: side sleeping — many doctors suggest the left side — with a pillow between your knees, a small one tucked under your belly, and one supporting your back turns your bed into a supportive nest rather than a wrestling ring. If you wake up on your back, don't panic; just roll back to your side and resettle.
For heartburn, finish dinner a couple of hours before bed, keep the evening meal smaller, prop your upper body slightly with an extra pillow, and note your personal trigger foods — late, large, spicy meals are the classic trio. For leg cramps and restless legs: gentle calf stretches before bed, a warm — not hot — bath or shower, and daytime walks to keep circulation moving can all ease the night shift.
Build a wind-down routine: dim lights, a chapter of a book, phone parked outside the bedroom if you can manage it. And the oldest advice in the book exists because it works: rest when you can, even in the day. A twenty-minute nap is not a luxury item in week 30; it's maintenance.
One more sleep truth, offered in solidarity: the bathroom trips are part of the architecture now, so build around them rather than fighting them. A nightlight path, a small drink beside the bed for after, and returning to bed without checking the clock — or the phone — keeps each waking brief instead of letting it become a full intermission. You're not failing at sleep, mama. You're sleeping like someone whose bladder is a pillow for a three-pound roommate, and that is a very specific, very temporary sport.
Still counting: your baby's pattern
A quick return to the pattern skill, because week 30 is when it really becomes a habit. By now you likely recognize the daily rhythm — the morning stretch, the post-meal wiggle session, the evening recital. Keep tuning in during your baby's usual active times, counting to ten movements if that's your doctor's method — many babies get there well within an hour, and a common general guideline is about ten movements in up to two hours.
But the pattern will always matter more than any single number: learn YOUR baby's normal, and let any clear change be your cue. So if you notice a real decrease, or movements that feel weaker or simply different from the rhythm you've come to know, call the same day — evenings and weekends included. Don't wait for the next appointment, don't wait until morning, and don't decide you're overreacting; that judgment call belongs to your care team, and they make it gladly. This is the single most useful alarm system of the third trimester, and you carry it with you everywhere.
And here's the joyful side of the habit: these tune-in sessions are often when partners and siblings get their best audience with the baby — a hand on the belly at the evening recital, a story read out loud to a listener who answers in kicks. The counting is a safety practice, yes. But on the ordinary days, which is nearly all of them, it's also simply time with your baby, and you're allowed to love it for that.