Drag to read about a different week.


    Your baby’s on the move.

    Front view of a fetus in the sixteenth week

    Your baby’s development

    Making faces–and muscles!
    Things are really taking shape as the skeletal and nervous systems begin to connect and muscles throughout his body begin to work. Developed facial muscles make it possible to squint, frown, and make other facial expressions.

    Here’s what else is happening during week 16 of pregnancy:

    • He’s probably 4 to 5 inches long now, which is about the length of a large pear.
    • Eyelashes are visible and his eyes move and even perceive light, although his eyelids are still sealed.
    • He may be having tiny hiccups, though he isn’t large enough for you to feel them.
    Milk and cereal with blueberries

    Your nutrition and health

    Iron out your pregnancy diet.
    This is a crucial time in your pregnancy when iron is especially important in the production of the red blood cells your body needs, and is one of the most critical nutrients in the prevention of complications for mom and baby. A lack of iron can cause anemia, which can make you feel tired and more susceptible to illness.

    As you continue on your pregnancy path, here are some healthy eating reminders:


    • Whole grains, such as whole-wheat or multigrain breads
    • Fruits and vegetables, including apples, pears, carrots, and spinach
    • Low-fat, nutrient-rich proteins, such as lean meats and poultry, low-fat yogurt, or water-packed tuna fish
    • Unsaturated fats, such as olive oil, canola oil, or safflower oil


    • Saturated and trans fats found in fats that are solid at room temperature, such as butter, beef fat, and shortening
    • Empty calories, such as those in sweetened beverages with added sugars, including soft drinks and presweetened teas
    The face of a woman with closed eyes

    Things to think about now

    Sinus congestion, runny nose, and nosebleeds, oh my!
    By your 16th week of pregnancy, it’s not uncommon to experience nasal discomfort from the excess hormones and extra blood in your system. If you experience congestion, a runny nose, or nosebleeds, here are a few suggestions to help keep them at bay:

    • Try saline drops with your doctor’s approval.
    • Drink enough liquids to keep nasal passages moist.
    • Try a humidifier, particularly when you sleep.
    • Dab petroleum jelly around the edges of your nostrils to moisten and protect the skin.
    A woman on the couch using a laptop and eating a fruit

    What happens next week

    Little lungs are getting ready for oxygen.
    Air passages in your baby’s lungs finish branching as they prepare to take in oxygen.