Pregnancy week by week
What’s happening to your baby and your body, week by week, with the trimester, month and baby size for every week from 4 to 40. In-depth guides are available for the weeks below, with more on the way.
- 6 weeks pregnanta lentil · First trimester
- 11 weeks pregnanta fig · First trimester
- 13 weeks pregnanta plum · First trimester
- 19 weeks pregnanta pomegranate · Second trimester
- 37 weeks pregnanta large pumpkin · Third trimester
Every week at a glance
| Week | Trimester | Month | Baby is about the size of | More |
|---|---|---|---|---|
| 4 weeks | First | Month 1 | a poppy seed | Size details |
| 5 weeks | First | Month 2 | a sesame seed | Size details |
| 6 weeks | First | Month 2 | a lentil | Read the guide |
| 7 weeks | First | Month 2 | a blueberry | Size details |
| 8 weeks | First | Month 2 | a raspberry | Size details |
| 9 weeks | First | Month 3 | a green olive | Size details |
| 10 weeks | First | Month 3 | a strawberry | Size details |
| 11 weeks | First | Month 3 | a fig | Read the guide |
| 12 weeks | First | Month 3 | a lime | Size details |
| 13 weeks | First | Month 3 | a plum | Read the guide |
| 14 weeks | Second | Month 4 | a lemon | Size details |
| 15 weeks | Second | Month 4 | a small apple | Size details |
| 16 weeks | Second | Month 4 | an orange | Size details |
| 17 weeks | Second | Month 4 | a pear | Size details |
| 18 weeks | Second | Month 5 | a sweet potato | Size details |
| 19 weeks | Second | Month 5 | a pomegranate | Read the guide |
| 20 weeks | Second | Month 5 | a mango | Size details |
| 21 weeks | Second | Month 5 | a grapefruit | Size details |
| 22 weeks | Second | Month 5 | a small papaya | Size details |
| 23 weeks | Second | Month 6 | an aubergine (eggplant) | Size details |
| 24 weeks | Second | Month 6 | a coconut | Size details |
| 25 weeks | Second | Month 6 | a small cauliflower | Size details |
| 26 weeks | Second | Month 6 | a small cabbage | Size details |
| 27 weeks | Second | Month 7 | a small cantaloupe | Size details |
| 28 weeks | Third | Month 7 | a pineapple | Size details |
| 29 weeks | Third | Month 7 | a butternut squash | Size details |
| 30 weeks | Third | Month 7 | a large cabbage | Size details |
| 31 weeks | Third | Month 7 | a small honeydew melon | Size details |
| 32 weeks | Third | Month 8 | a honeydew melon | Size details |
| 33 weeks | Third | Month 8 | a large honeydew melon | Size details |
| 34 weeks | Third | Month 8 | a small pumpkin | Size details |
| 35 weeks | Third | Month 8 | a pumpkin | Size details |
| 36 weeks | Third | Month 9 | a mini watermelon | Size details |
| 37 weeks | Third | Month 9 | a large pumpkin | Read the guide |
| 38 weeks | Third | Month 9 | a small watermelon | Size details |
| 39 weeks | Third | Month 9 | a small jackfruit | Size details |
| 40 weeks | Third | Month 9 | a watermelon | Size details |
Not sure which week you’re in? Use the gestational age calculator.