Week 3
If a sperm meets an egg, the cells begin to divide on their way to the uterus. Implantation, if it happens, is still a few days off.
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.