Week by week
You're 12 weeks pregnant: what to plan
Drag along the weeks, tap one, or use the arrow keys
Planning milestone
Baby is about the size of
a lime
- Length · head to bottom
- 2.1 in
- Weight
- under 1 oz
Averages only. The dashed rings show baby’s size at 27 and 40 weeks. Your scans are what count.
Week 12
First trimester · 28 weeks to your due date
Before the second trimester, line up the decisions that have long lead times.
This week’s milestone
Research childcare waitlists
If you’ll need childcare, start looking now. In many cities the most popular daycares have waitlists that stretch for months.
- Research childcare waitlistsMilestone
- Ask friends with kids which gear they actually used
- Check your leave and pay timeline with HR
- Plan any trips for the second trimester
Week 12limeCalculate your due date
Estimate only — talk to your healthcare provider about your due date.
Pregnancy week by week
What to plan, buy and book at each stage.
- Week 4
- Week 5
- Week 6
- Week 7
- Week 8Start your pregnancy budget
- Week 9
- Week 10
- Week 11
- Week 12Research childcare waitlists
- Week 13
- Week 14
- Week 15
- Week 16Compare strollers and car seats
- Week 17
- Week 18
- Week 19
- Week 20Create your registry
- Week 21
- Week 22
- Week 23
- Week 24Plan the baby shower
- Week 25
- Week 26
- Week 27
- Week 28Book parenting classes
- Week 29
- Week 30
- Week 31
- Week 32Choose a pediatrician
- Week 33
- Week 34
- Week 35Pack the hospital bag
- Week 36Install the car seat
- Week 37
- Week 38
- Week 39
- Week 40Due date week
- Week 41
- Week 42