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This guide is for educational purposes only. Always consult your healthcare provider about your pregnancy weight gain.
Pregnancy Progress
Week 17 of 40 (43%)
3.5-8
lbs gained to date
15-25 lbs
total target
0.5-0.7
lbs/week rate
+340
cal/day extra
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The fetus is the size of a pear. Fat stores begin developing. The umbilical cord grows stronger.
The anatomy scan (detailed ultrasound) is typically done between weeks 18-22.
Blood volume increases 40-50% during pregnancy. Iron prevents fatigue and anemia.
Fetal skeleton is developing rapidly. Maintain your own bone density.
Critical for fetal brain and eye development. Found in fatty fish or supplements.
Supports calcium absorption and immune function for both mother and baby.
+340 calories per day
During the second trimester, you need about 340 extra calories per day. That is roughly a yogurt with granola and fruit.
At week 17 with Overweight BMI (BMI 25-29.9), the IOM recommends a total gain of 3.5-8 lbs so far. Your overall pregnancy target is 15-25 lbs.
For Overweight BMI at week 17, a healthy gain is 3.5-8 lbs total. If you are outside this range, talk to your healthcare provider. Individual variation is normal.
During the second trimester, you need about +340 extra calories per day above your pre-pregnancy intake. This supports fetal growth and your increased metabolic needs.
During the second trimester (week 17), key nutrients include iron (27 mg/day), calcium (1,000 mg/day), and vitamin D (600 IU/day). A prenatal vitamin covers most needs.
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