Development
What is developing around week 5
This early-development phase includes formation of the brain and spinal cord, the beginning of the heart, and the appearance of arm and leg buds. Development is rapid, and exact timing varies.
Your body
Changes you may notice
First-trimester experiences can include fatigue, breast tenderness, nausea, food aversions or cravings, mood changes, constipation, urinary frequency, headache, and heartburn. Some people have few symptoms; symptom intensity does not reliably measure pregnancy health.
Symptoms vary widely. Absence, presence, or intensity of a symptom cannot confirm that a pregnancy is progressing normally.
This week’s focus
A practical next step
Track symptoms without comparing your experience too closely with someone else’s pregnancy.
- Track symptoms without comparing your experience too closely with someone else’s pregnancy.
- Keep appointments and follow the plan created with your prenatal care professional.
- Save new symptoms and questions in one place so changes are easier to explain.
Prenatal visit
Questions worth bringing with you
- What should I understand or prepare during pregnancy week 5?
- Which symptoms should make me call you now rather than wait for my next appointment?
- What tests, vaccines, medicines, or decisions are coming next in my care plan?