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Second Trimester
During the second trimester of pregnancy, you’ll start looking and feeling pregnant. Learn what to expect from your pregnancy during the second trimester weeks.
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Second Trimester of Pregnancy
More energy, bigger appetite, feeling baby kick and more. Here's what's happening during the second trimester.
By
Amylia Ryan
Fact Checked by
Jen LaBracio, CPST
Updated On
Jul 15, 2026
Updated
Jul 15, 2026
13 Weeks Pregnant
At 13 weeks, baby is the size of a Lipsmacker tube, and you’re officially in the second trimester.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
14 Weeks Pregnant
At week 14, your baby is the size of a roll of bubble gum tape, and you may be starting to feel a little more human.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
15 Weeks Pregnant
At 15 weeks, your baby is the size of a Baby Bottle Pop candy and is starting to see light.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
16 Weeks Pregnant
At 16 weeks pregnant, you may have that pregnancy glow, and your baby is the size of an iPod.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
17 Weeks Pregnant
At 17 weeks pregnant, baby is the size of a Nintendo controller and is practicing sucking and swallowing.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
18 Weeks Pregnant
At 18 weeks pregnant, baby is the size of a My Little Pony, and you may be swelling and having trouble sleeping.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
19 Weeks Pregnant
At 19 weeks pregnant, baby is the size of a Magic 8 ball, and you may start to feel them moving around.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
20 Weeks Pregnant
Congratulations! You're halfway through your pregnancy, and baby is the size of a Burger phone.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
21 Weeks Pregnant
At 21 weeks, your baby is the size of a Game Boy Color, and you may be having digestive issues.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Jul 24, 2026
Updated
Jul 24, 2026
22 Weeks Pregnant
Baby is the size of a Motorola Razr phone, and their facial features are more distinct.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
23 Weeks Pregnant
At 23 weeks, your baby is the size of a Sony Handycam and is developing a strong heartbeat.
By
Babylist Staff
Medically Reviewed by
Dr. Alyssa Dweck
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
24 Weeks Pregnant
At 24 weeks pregnant, baby is the size of a Poo-Chi robot dog, and is developing surfactant.
By
Babylist Staff
Updated On
Feb 26, 2026
Updated
Feb 26, 2026
25 Weeks Pregnant
At 25 weeks pregnant, your baby is the size of a 16 oz. ICEE—and knows your voice.
By
Babylist Staff
Updated On
Jul 15, 2026
Updated
Jul 15, 2026
26 Weeks Pregnant
At 26 weeks pregnant, baby is the size of a Happy Meal—and you might start thinking about a birth plan.
By
Babylist Staff
Updated On
Apr 1, 2026
Updated
Apr 1, 2026
27 Weeks Pregnant
At 27 weeks, your baby is the size of a Nickelodeon Kids’ Choice Award! And you may be having Braxton Hicks contractions.
By
Babylist Staff
Updated On
Apr 1, 2026
Updated
Apr 1, 2026
