Week 2
Ovulation usually sits near the end of this week. There is not yet an embryo to measure — the calendar has simply started.
Ask your midwife or doctor before you change medicine, herbs, or a birth plan.
Related
The first trimester
Weeks are counted from the last period, and the early body is allowed to feel strange without owing anyone a glow.
Sizes and dates are averages. Feeding and sleep notes follow widely published public-health guidance, including World Health Organization infant-feeding advice and back-to-sleep recommendations. They are not a protocol for your hospital.