All care guidesCare Guides
Pregnancy, Week by Week
From your first positive test to your due date — what’s happening with your baby and your body each week, with a checklist and the signs worth a call to your doctor.
First Trimester
Weeks 4–12Week 4
size of a poppy seedImplantation & Your First PositiveWeek 5
size of an apple seedHeart & Neural Tube BeginWeek 6
size of a lentilHeartbeat MilestoneWeek 7
size of a blueberryArms & Legs FormingWeek 8
size of a raspberryFingers & Toes AppearWeek 9
size of a cherryAll Essential Organs FormedWeek 10
size of a strawberryTiny Nails GrowingWeek 11
size of a limeBig Head, Busy HandsWeek 12
size of a plumEnd of First Trimester!Second Trimester
Weeks 13–27Week 13
size of a peachWelcome to Trimester TwoWeek 14
size of a lemonGrowing StrongerWeek 15
size of an appleSenses AwakeningWeek 16
size of an avocadoFlutter FeelingsWeek 17
size of a pearGetting StrongerWeek 18
size of a sweet potatoBaby Can Hear YouWeek 19
size of a mangoProtected & GrowingWeek 20
size of a bananaHalfway There!Week 21
size of a carrotActive BabyWeek 22
size of a papayaLooking Like a NewbornWeek 23
size of a grapefruitSound & MovementWeek 24
size of a cantaloupeGlucose Screening TimeWeek 25
size of a cauliflowerFilling OutWeek 26
size of a lettuceEyes Wide OpenThird Trimester
Weeks 28–40Week 27
size of a cabbageThird Trimester BeginsWeek 28
size of an eggplantI Can Blink!Week 29
size of a butternut squashBrain Power SurgeWeek 30
size of a cabbageGrowing FastWeek 31
size of a coconutGetting Into PositionWeek 32
size of a jicamaHospital Bag TimeWeek 33
size of a pineappleBuilding ImmunityWeek 34
size of a cantaloupeBaby May DropWeek 35
size of a honeydewAlmost Full TermWeek 36
size of a papayaWeekly Visits BeginWeek 37
size of a swiss chardEarly Term!Week 38
size of a leekAny Day NowWeek 39
size of a mini watermelonReady to Meet YouWeek 40
size of a watermelonDue Date Week!