Pregnancy week by week

What to expect, week by week.

Pick a week to see roughly how big baby is, what's happening in your body, common symptoms, and a few things worth doing. It's general information to help you know what to ask — your doctor or midwife is the best guide to your own pregnancy.

First trimester

Weeks 1–12

Week 1No size yet
Week 2Smaller than a pinhead
Week 3Poppy seed
Week 4Poppy seed
Week 5Sesame seed
Week 6Lentil
Week 7Blueberry
Week 8Raspberry
Week 9Cherry
Week 10Strawberry
Week 11Lime
Week 12Plum

Second trimester

Weeks 13–26

Week 13Lemon
Week 14Peach
Week 15Apple
Week 16Avocado
Week 17Pear
Week 18Bell pepper
Week 19Mango
Week 20Banana
Week 21Carrot
Week 22Spaghetti squash
Week 23Grapefruit
Week 24Ear of corn
Week 25Rutabaga
Week 26Zucchini

Third trimester

Weeks 27–40

Week 27Cauliflower
Week 28Eggplant
Week 29Butternut squash
Week 30Cabbage
Week 31Coconut
Week 32Jicama
Week 33Pineapple
Week 34Cantaloupe
Week 35Honeydew melon
Week 36Romaine lettuce
Week 37Swiss chard
Week 38Leek
Week 39Mini watermelon
Week 40Small pumpkin

Track your own pregnancy, week by week.

MyBabyBase keeps a due-date countdown, a mood and symptom journal, appointments, and your documents in one calm hub.