Pregnancy week by week

One page per week: what your baby is doing, what is normal for your body, red flags worth a call, and a short checklist. Every claim links to its primary source. New weeks are added daily until all 40 are here.

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Week 4Implantation, the first hormone signals, and the calm first steps after a positive test. Week 5The sesame-seed week: hCG rising fast, first symptoms, and the two steps that matter most right now. Week 6A tiny heart starts beating, morning sickness ramps up, and what an early ultrasound can really show.
Week 7Coming this week.