Weight Gain Q&A

Q: How much weight can I expect to gain during pregnancy?

A: On average, 25 to 35 lbs (11.5 to 16 kg). Smaller women may need a little more to store extra energy. If you started out a bit heavier, you may need to gain a little less. 

If you are pregnant with twins or triplets, your health care provider will suggest a healthy amount of weight to gain.

Q. At what rate will I gain weight?

A.  Weight gain is usually slow during the first 3 months.  After this, your baby begins to grow more quickly.  Although everyone is different, here is a guideline of what you can expect.

 

First Trimester

Second Trimester

Third Trimester

Total Weight Gain

Weight Gain

2-5 lbs (1-2 kg)

13 lbs (6 kg)

10-18 lbs (4.5-8 kg)

25-35 lbs
(11.5-16 kg)

Q: How much of this weight is actually baby?

Breakdown of weight gain

Baby

6-8 lbs (2.5-3.5 kg)

Energy Stored as Fat

5-8 lbs (2 -3.5 kg)

Placenta and Amniotic Fluid

4-6 lbs (2-2.5 kg)

Blood

4 lbs (2 kg)

Breasts

2-3 lbs (1-1.5 kg)

Uterus

2-3 lbs (1-1.5 kg)

Extra Fluids

2-3 lbs (1-1.5 kg)

Total

25-35 lbs (11.5-16 kg)

Q: How many more calories do I need per day while I'm pregnant?

A: You will need about 350 extra calories per day in your second trimester and an extra 450 calories per day in your third trimester. Nutritious ones, that is. A turkey sandwich, on whole wheat with mustard, is a fine example.

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