Your baby is starting to transform from a precious-but-super-sleepy newborn to an almost full-fledged infant. And with all that growth and development happening, there are some big changes and milestones coming down the pike.
So get excited! Payback for the sleep deprivation you're probably dealing with is on its way. Here’s what you can look forward to this week. Your little one is getting stronger every day — and you can encourage baby to flex those muscles by providing ample supervised tummy time during the day so she can practice lifting that cute head. Some 3-weekers will be able to lift their heads 45 degrees when on their tummies, and the more practice baby gets, the better. Tummy time will also help prevent head flattening, something more common in babies who spend all day and night lying on their backs or propped in bouncers and car seats. In brain-related news, your baby is ready for more complex shapes (bye-bye circles, hello zigzags!) as vision, the ability to focus, and concentration improve rapidly. She may really love gazing at a mobile or a soft toy you hold up close enough so she can see it. Of course, when she’s not in the mood to play, she might be in the mood to cry (and cry). All babies cry, but some babies wail more than others. In fact, there are newborns who sob inconsolably for hours. Doctors will generally diagnose such crying as colic when it lasts for at least three hours at a time, at least three days a week, over the course of at least three weeks. Your cutie is surely packing on the pounds and ounces now that she’s 3 weeks old. But when taking note of your little one’s weight, stop yourself from comparing it to your BFF's baby’s weight, or your sister’s, or ... you get the idea. That’s because the most important measure of your baby’s growth isn’t how she stacks up to other babies, but rather how she stacks up to her own weight and height curve. The pediatrician will want to follow your baby’s growth trends over time. The doctor will look closely to make sure your little one is trending on relatively the same curve she’s been on (whether that’s the 15th percentile, the 50th percentile or the 90th percentile). A big jump (say, from the 20th percentile to the 50th percentile) can mean that baby’s gaining too fast. A big dip can mean she isn't getting enough to eat. Your baby’s doctor will help you make sense of these percentiles and how your baby is growing. There are no well-baby visits or shots this week (yay!), but there's still plenty going on with your baby's health. If you’re not able to breastfeed, and your baby has a medical condition that requires human milk (including prematurity, failure to thrive, an intolerance to formula or allergies), there are ways to get donated breast milk from other moms through a milk bank. Here’s what you’ll want to keep in mind as you begin your search: As tempting as it may be, best friends (or even casual ones) shouldn’t become "breast friends."The American Academy of Pediatrics (AAP), La Leche League and other experts frown on moms casually breastfeeding one another’s babies and for good reason: There’s always a risk that your pal could unwittingly pass on a virus or like hepatitis or HIV. There’s also the chance that the shared milk could contain medications if your friend is taking any. Do consider buying from a milk bank.Unlike an informal arrangement between moms, the milk banks in the U.S. have strict guidelines — guidelines that were set up by the Human Milk Banking Association of North America (HMBANA), an organization of pediatricians and other health care workers. The guidelines regulate donors as well as the way milk is collected and stored. Calculate the costs and get some financial help if you need it. Buying donated milk is expensive. Although nursing moms donate their milk for free, the milk, which the guidelines state can be obtained only with a prescription from your doctor, costs about $3 an ounce. While older babies are known for their smooth complexions, 3-week-olds definitely aren't. Among the conditions that may be keeping the skin your baby's in colorful but less-than-flawless: red pimples and whiteheads (didn't expect those until middle school at least?), pink diaper rashes, flaky cradle cap and purplish mottling (not to worry — it's just a sign of your baby's immature circulation). Fortunately, all these baby skin imperfections are temporary. Some, like the pimples and mottling, will go away on their own; others, like diaper rash and cradle cap, will respond well to treatment. Clear baby skin is just around the corner. Labor and delivery, as you might have noticed, are really rough on your body — especially "down there." Your perineum muscles and nerves may be stretched or damaged, making it difficult for you to control how and when digested food leaves your body. Postpartum fecal incontinence usually takes care of itself as your body returns to normal. Until then, here are a few steps you can take to alleviate the problem: It pays to be extra careful for the two months until your baby has had her first set of vaccines and her immune system is more developed. The younger your baby, the less time that tiny immune system has had to strengthen. That goes double for infants born prematurely or with other health concerns. So in those early weeks, avoid crowded areas. Inside or out, keep your baby in a stroller, sling or carrier. And after any outing, clean your baby’s hands with a wipe or wet, soapy cloth. If your little one keeps mixing up day and night, try these tips: Your friends and family are probably as excited to meet your newborn as you are to show your little bundle off. But be sure to set and enforce this simple ground rule: All admirers who want to touch or hold your baby must wash their hands first — and anyone who is clearly sick or has a rash should stay home. Blame your pediatrician or your own paranoia, but get your message across. Be especially careful with small children, who could be carrying all sorts of contagious stuff. Teach them to gently pat your baby’s back or touch her tiny toes, but never the hands or face. And after any outing or social scene, clean your baby’s hands with a wipe or wet, soapy cloth. Most babies pick a fussy period during the afternoon or early evening as their "witching hour" to let it all out and cry for a while. If the crying is colic (which it isn't always), it may seem like those babies are in pain. One theory is that colicky babies are also gassy babies, though they might be gassy because they're swallowing a lot of air from all that crying or because newborns often struggle with gas pain because of their immature digestive systems. Colicky babies also often seem to want to eat all the time — but sometimes that's because the sucking is soothing, not because they're hungry. Using a pacifier can help. Your baby's tearful bouts could be a sign that she’s overstimulated. Babies this age often need to unwind with a good cry at the end of the day. She could also be hungry more often because she's going through a growth spurt or for some other reason. Try feeding your little one a bit more and see if that helps. If your baby does seem to be in pain, check for fever and call the doctor. It's possible that she's coming down with something. But if it's colic that she's coming down with, it's probably here to stay, to some degree, for the next few weeks or months. And if it's hunger, work with your pediatrician to figure out whether any adjustments in the feeding department are in order.Your 3-week-old baby's development
At a Glance
Your 3-week-old baby's growth
Your 3-week-old baby's health
Postpartum & new baby tips
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