15 Weeks Pregnant: Week-by-Week Guide

    15 Weeks Pregnant: Week-by-Week Guide

    Congratulations! You are 15 weeks pregnant. At this stage of your journey, new developments are beginning to unfold. Explore our week-by-week guide to find out what’s in store for your baby and your body in week 15 of pregnancy.

    At 15 weeks pregnant:

    • Your baby is the size of an orange
    • You’re in month four, five more.
    • The countdown continues: you’ve got 25 weeks to go!

    What happens during the 15th week of pregnancy?

    • You’ve got a little fuzzball growing — hair is beginning to appear with the growth of you baby’s eyelashes, eyebrows and a tiny amount on their head.
    • I see you baby the skin is developing, but it's so translucent that you can see the blood vessels just below the surface.
    • Bust a move — your baby is getting active in there, being able to move their arms, wrists, head, hands, feet, and wiggle their fingers and toes.
    • Take a deep breath — your baby can now make breathing movements, suckle, and swallow.

    What should I be feeling at 15 weeks pregnant?

    • By this week, you may be susceptible to what is known as pregnancy or baby brain, a vagueness or forgetfulness that happens to mothers it won’t last forever, but it’s a good excuse for little things you may forget right now.
    • This is the best time in your pregnancy so far you’re likely not feeling sick or so large that it’s uncomfortable, so sit back and enjoy the ride.

    15 Weeks Pregnant Facts

    How big is your baby? Check out the chart below to find out!

    Baby Size at 15 Weeks
    Baby Weight Two and a half ounces
    Baby Length Four inches
    Baby Size Comparable to a pear

    Week 15 Pregnancy Symptoms

    During week 15 of pregnancy, your body is adjusting to the new life it’s supporting. As your baby changes, you will too, and there are certain pregnancy symptoms you may experience at this time. Keep these week 15 pregnancy symptoms on your radar:

    • Along with pregnancy brain, you may get headaches and dizziness.
    • As your body changes, varicose veins may appear in your legs.
    • If you’ve noticed you’re getting short of breath, it could be because your lungs are being pressed against as your organs make way for the little one.


    Being 15 weeks pregnant is an important time for you and your baby. Get advice on how to adjust to this new stage.

    • Your body’s growing and you’ll get some fluid retention happening, so try some slip-on shoes in one size (or even two sizes) bigger than you normally wear.
    • Don’t skip out on breakfast. Your body and baby need it.
    • By now you’re gaining 1 to 2 pounds per week so ensure you’re eating the right foods for a healthy baby.

    Week 15 Checklist: Plan Your Pregnancy

    Be prepared. Explore our pregnancy checklist below and add these items to your to-do list this week.

    To-Do Complete
    Schedule any upcoming screenings and tests
    Treat yourself to some comfortable new shoes
    Think about who’s coming to your baby shower

    Find out about what prenatal tests are coming up or get tips for your second trimester.