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Week by week

You're 5 weeks pregnant: what to plan

Planning milestone

Baby is about the size of

a sesame seed

Length · head to bottom
under ¼ 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 5

First trimester · 35 weeks to your due date

Early weeks are a good time to get the money and paperwork side organised.

  1. Keep appointments in a shared calendar
  2. Start a pregnancy budgetList one-off costs and new monthly costs
  3. Check what your health insurance covers for maternity and newborn care
  4. Read your employer's parental leave policy
Week 5sesame seed
Calculate 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.