How much weight should I have gained by 17 weeks?

Weight gain varies by individual, but the general guideline for women with a normal pre-pregnancy BMI is 2-5 pounds in the first trimester and about 1 pound per week in the second trimester. Your healthcare provider will track your specific progress.

Is sciatic nerve pain normal during pregnancy?

Yes, sciatic pain is common as your growing uterus puts pressure on the sciatic nerve. It typically feels like a sharp or shooting pain from your lower back through your buttock and down one leg. Gentle stretching, warm compresses, and chiropractic care can help.

Second Trimester 17 weeks pregnant

Pregnancy Week 17 - Sweat Glands Form & Fat Accumulates

At 17 weeks, your baby is about the size of a pear. Sweat glands are developing, and your baby is starting to accumulate fat under the skin, which will help regulate body temperature after birth. The skeleton is changing from soft cartilage to bone.

Pear

Baby Size

13 cm

Length

140 grams

Weight

Week 17

of 42

Baby Development This Week

Your baby's sweat glands are forming, and fat is beginning to accumulate under the skin. This subcutaneous fat will help regulate body temperature after birth and give your baby that adorable chubby appearance. The skeleton is transforming from soft cartilage to bone, and the umbilical cord is growing stronger and thicker. Your baby is becoming more active, stretching, rolling, and kicking. The heartbeat is now regulated by the brain and is strong enough to be heard with a stethoscope.

Changes in Your Body

Your belly is growing noticeably, and you might be gaining weight more rapidly now. Some women experience sciatic nerve pain, which feels like a shooting pain from the lower back down the leg. You may notice your baby's movements more clearly if you have been feeling them. Increased vaginal discharge is normal. Some women develop pregnancy rhinitis, a persistent stuffy nose that is not caused by allergies or illness.

Common Symptoms at Week 17

Back painSciaticaIncreased vaginal dischargeStuffy noseLeg crampsStretch marks

Tips for Week 17

Use a pregnancy support belt to help with back and pelvic pain.
Sleep on your side with a pillow between your knees for better alignment.
Include healthy fats in your diet to support your baby's fat accumulation.
Keep track of your baby's movements once you start feeling them regularly.

When to Call Your Doctor

Seek care for severe back pain, signs of preeclampsia, heavy bleeding, fever, or painful urination.

Frequently Asked Questions — Week 17

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