Erik, not only the man who planted the seed for What to Expect (literally, since he’s the father of Emma, the baby who started it all), but the man who’s helped me grow, nurture, nourish, and protect it—really, co-parent it.

There are plenty of postnatal videos for moms to choose from these days, but even an episode of Sesame Street has enough singing and dancing to do the trick (that beloved red furry monster can definitely inspire some calorie-burning movement! Skip hard-to-digest foods for now (nothing fried, no beans, no cabbage), and avoid overeating or eating on the run. Try dressing your little one in a one-piece sleeper outfit, a long-sleeved shirt and pants, and a snowsuit (or bunting). to 10 months:Many babies begin crawling when they’re around 9 months old (although some start sooner and others later) and begin standing at around 10 months.Stop me if you’ve heard this one: Two new parents walk into an apartment with a crying baby … and suddenly realize that not only is this crying baby theirs—but that she’s their full-time responsibility. Matt Beard, our favorite photographer (and one of our favorite people ever), for perfectly capturing that Lennox essence for our cover. The keys to success, whether you’re switching from bottle, breast or both, are practice, patience and making it fun. At 3 weeks old, you can start introducing regular tummy time for your baby to develop the muscles that he or she needs to eventually hold their neck up. I knew that I loved her, but I was pretty sure this squalling red stranger sniffing at my breast didn’t feel the same about me.

This is the month you'll start your baby on solids if you haven't already, and also when yourbaby can start sitting up better. If your baby reaches one milestone sooner, she may reach another one later, because she’s so busy perfecting the other skill,” says Jennifer Shu, MD, pediatrician and co-author of Heading Home with Your Newborn.

Some 3-weekers will be able to lift their heads 45 degrees when on their tummies, and the more practice baby gets, the better. She’ll also be able to focus on objects that are within 8 to 12 inches away — exactly the distance your face will be when you’re gazing at her. Thanks to a continuing diet of breast milk or formula (around 24 to 30 ounces a day) and solids (ranging from about 1 to 2 tablespoons to 3 to 9 tablespoons of cereal, proteins, fruit and vegetables each per day), your baby will weigh somewhere between 13 and 23 pounds and measure somewhere between 24 and 29 inches if he's a boy. Making a big deal out of a bite, by crying out in pain or sternly scolding him, may only encourage him to try again to see what you'll do next.