American College of Obstetricians and Gynecologists. Garfield P. March of Dimes. Seat belts during pregnancy. Mayo Clinic. Fetal development: The 2nd trimester. Fetal development. Join now to personalize. Translucent skin Your baby's blood vessels are visible through his thin skin , and there's no baby fat yet to plump him up. Sleep on your side Avoid lying flat on your back now.
Safe exercise tips Keep moving : Standing still — while doing yoga poses , for example — can lower your blood pressure and make you dizzy. You're in your fourth month! Your baby at 17 weeks Tap the plus for more details.
Your body at 17 weeks Tap the plus for more details. By Kate Marple. Medically reviewed by Judith Venuti, Ph. Sources BabyCenter's editorial team is committed to providing the most helpful and trustworthy pregnancy and parenting information in the world. Featured video. Baby Names Finder. Decisions, decisions. As you start making these decisions, the pregnancy will feel even more real, which is super exciting, but part of you is probably feeling a little anxious, too.
Our best advice? A baby at pregnancy week 17 is the size of a pomegranate. Your week fetus is about 5. At 17 weeks pregnant, you're four months pregnant. But here's the catch: Pregnancy is technically longer than nine months—it's 40 weeks long, and if you assign four weeks to a month, that's 10 months long.
Of course, some months have slightly more than four weeks. It can all get a little confusing, which is why doctors track pregnancy by week, not month. Baby is working on getting stronger, and your 17 weeks pregnant body is working on getting bigger—about 1 to 2 pounds bigger per week.
Make sure you document your growing 17 weeks pregnant belly by taking lots of photos. Those first exciting kicks you may be feeling at week 17 have a name: the quickening. This can interfere with blood flow to baby, and it can lower your blood pressure. Really, any position other than flat on your back is fine, if you are a back-sleeper, tuck a pillow under one hip to tilt your belly to the side. Baby's rubbery cartilage is now turning to bone.
And baby is growing some meat on those bones, putting on some fat. Happily, your toilet-hugging days and nights are probably over.
And happily, these days it's more likely that you can't get enough to eat. For most women, the second trimester not only brings relief from morning sickness but also a hearty appetite. Don't be surprised if you suddenly feel hungry enough to polish off a sizable cut of steak or a whole tray of baked ziti at 17 weeks pregnant.
What's behind your increase in appetite? Simple — you're taking signals from your baby, who's getting bigger and hungrier. Not sure exactly how much weight you should gain during pregnancy? Talk to your practitioner, who will be able to help you maintain a healthy weight gain.
Your doctor or midwife can also help you play weight gain catch-up if you didn't gain enough or lost weight during the first trimester. One inexplicable pregnancy symptom? But take heart: The stuffiness that often triggers world-champion snoring is common — and temporary. That's right, even your nose is affected by pregnancy hormones! Try putting a humidifier in your bedroom, using one of those nasal strips on your nose to open up your nasal passages, or sleeping on a couple of pillows to keep your head slightly elevated.
And if your partner complains? Banish your sweetie to the sofa for the night — it's more important that you get a good night's sleep. More new developments with your body may be on tap this week: an increase in vaginal discharge leukorrhea and a greater sensitivity to allergens.
Both are totally normal! Hormones and milk-producing glands are developing to prepare for nursing. All this activity, plus an increase in blood flow, can cause your breasts to grow up to three cup sizes. Of course, every pregnant woman's symptoms are different. While breast growth is common — and for some women quite a lot — you might not notice any changes at all in your breast size, especially if you're busty to begin with.
The sciatic nerve, the largest in the body, starts in the lower back, runs down the buttocks, and branches down the back of the legs to the ankles and feet. In most cases, sciatica — sharp, shooting pain, tingling or numbness that starts in the back or buttocks and radiates all the way down the legs — happens when this nerve gets compressed by bulging, slipped or ruptured discs. Arthritis and a narrowing of the spinal canal, also called spinal stenosis, can also be culprits.
Try a heating pad or back stretches to ease the pain. Not to worry. Hormones can affect the gums, ligaments and bones in your mouth, which in turn can loosen the teeth and sometimes even cause them to fall out.
This stops post-baby, but if you have periodontitis or are concerned, see the dentist. Your uterus is supported by thick bands called ligaments that run from the groin up the side of the abdomen. As your uterus grows during pregnancy, these bands stretch out to accommodate your growing bump — which can cause sharp pains and dull aches in the lower abdomen. To relieve round ligament pain , make sure to spend time off your feet and decrease the intensity of your workouts.
You can also consider wearing a belly band for a little extra support. Seeing spots — on your face? A line down your lower belly? Skin tags dotting your upper arms?
No need to dash to the dermatologist. These strange skin symptoms , including darkening moles and heat rashes, are all normal and temporary. As usual, hormones are to blame, but the sun can exacerbate these changes in your complexion.
So stay shaded whenever you can — now's the time to invest in a wide-brimmed hat — and apply a broad spectrum sunscreen with an SPF of 30 or higher when you venture out in the daylight. Sunscreen is safe and smart to use when you're expecting. Do the palms of your hands look as if you've touched a hot pan? You could have palmar erythema , a skin condition in which the palms of the hands or the soles of the feet appear redder or darker than normal.
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