Drag to read about a different week.


    Discovering the world around him.

    The hands and face of a fetus in the twenty-second week

    Your baby’s development

    Coming to his senses: an increased sense of touch.
    Your baby is starting to discover a world around him as his senses continue to develop. When you’re 22 weeks pregnant, your baby’s brain and nerve endings progress enough to process the sensation of touch.

    During your 22nd week of pregnancy:

    • Your baby is about 7.5 to 8 inches long from head to tush, about the length of a head of cabbage, and weighs about 1 pound.
    • Your baby’s reproductive system continues to develop. Testes begin to descend in boys, and a girl’s ovaries and uterus are now in place as her vagina develops.
    • Though they’re muffled behind amniotic fluid and vernix, your baby continues to hear sounds from the outside world and will soon recognize your voice.
    An expectant mother lying down on a sofa eating a plate of fruits

    Your nutrition and health

    How much weight should you gain?
    During your second trimester (months 4-6 of pregnancy), increase your caloric intake by about 340 calories per day. How much weight you need to gain depends on many things, including your pre-pregnancy weight. Do not use weight loss diets during pregnancy. You need calories and nutrients for your baby’s healthy growth and development. It’s best to consult with your doctor about your individual weight gain.

    Below are the guidelines from the Institute of Medicine based on a 2009 reexamination of the science of pregnancy weight gain:

    Pre-pregnancy BMI Recommended Weight Gain Pounds
    Underweight (BMI < 18.5) 28–40
    Normal Weight (BMI 18.5-24.9) 25–35
    Overweight (BMI 25-29.9) 15–25
    Obese (BMI ≥ 30) 11–20
    A pregnant woman talking with a doctor

    Things to think about now

    Your 22nd week checkup.
    You’re probably planning a visit to your doctor for another prenatal visit around the 22nd week of pregnancy. Here’s what you can expect:

    • Similar to previous prenatal checkups, your doctor checks both your health and your baby’s progress.
    • Your doctor may discuss an upcoming glucose screening – a routine test that checks for gestational diabetes. You might take this test at your next appointment, sometime between the 24th and 28th weeks of pregnancy.
    Two women staring at the growing baby bump of a pregnant woman

    What happens next week

    Preparing to breathe.
    Your baby’s lungs develop rapidly during week 23 of pregnancy. She’s also moving amniotic fluid in and out of her lungs as a warm up to breathing.