Pregnancy week by week › Week 5
Week 5 of your pregnancy
Your baby is about the size of a sesame seed
The brain, spinal cord and heart are developing fast, and blood vessels are starting to form.
sesame seed0.2 cm
You this week
Hormone changes can bring cravings, tiredness, tender breasts, nausea, mood swings and darker patches of skin.
Tips for this week
- Book your first appointment with a midwife
- Keep taking folic acid until week 12
- Stay active: 150 minutes a week
Follow week 5 together
Bump Diary shows this every day, with a photo of your bump, shared with your partner. Free on iPhone.
Summarised from the NHS website. Every pregnancy is different: this is general information, not medical advice. If you're worried about yourself or your baby, contact your midwife or maternity unit. In an emergency, call 999.