5 Weeks Pregnant: What to Do — Complete Guide
At five weeks pregnant, your baby is growing rapidly even though you may not yet show any outward signs. The embryo is now roughly the size of a sesame seed, and major organs are beginning to develop. This is a crucial time for your baby's growth, making your lifestyle choices more important than ever.
What is happening with your baby
During week five, the neural tube is forming. This will eventually become your baby's brain and spinal cord. The heart is beginning to develop and will soon start beating. Tiny buds are forming that will become arms and legs. At this stage, your baby is approximately two millimetres long.
What to do this week
Continue taking folic acid
Your daily 400 micrograms of folic acid remains essential this week, as the neural tube is actively developing. This is one of the most critical supplements in early pregnancy.
Book your first NHS appointments
If you have not yet contacted your GP, do so now. They will refer you to a midwife for your booking appointment, typically scheduled between weeks eight and ten. You can also ask about self-referring to your local maternity unit.
Start a pregnancy journal
Many women find it helpful to document their journey from the very beginning. Recording your symptoms, feelings, and milestones can be a wonderful keepsake and help you track changes week by week.
Focus on hydration and rest
Your body is working hard, even if you cannot see it. Drink plenty of water and prioritise rest. If you are feeling fatigued, listen to your body and nap when you can. Early pregnancy tiredness is very common and usually eases in the second trimester.
Managing early pregnancy symptoms
Morning sickness
Nausea can begin around week five or six. Despite the name, it can strike at any time of day. Try eating small, frequent meals and keeping plain biscuits by your bed. Ginger tea and acupressure wristbands may help. If you cannot keep any food or fluids down, speak to your GP as you may have hyperemesis gravidarum.
Breast tenderness
Your breasts may feel swollen and sensitive. A supportive, well-fitted bra can make a big difference. You might also consider maternity bras, which are designed to accommodate changes in breast size.
Frequent urination
As your kidneys process extra blood volume and your uterus begins to grow, you may need to use the toilet more often. Stay hydrated but try not to drink large amounts right before bedtime.
Foods to prioritise
Now is an excellent time to build healthy eating habits. Focus on:
- Leafy greens such as spinach and kale
- Fortified cereals for folic acid and iron
- Eggs and lean meats for protein
- Citrus fruits for vitamin C
- Pasteurised dairy for calcium
What to avoid
- All alcohol
- Raw or undercooked eggs, meat, and fish
- Soft, unpasteurised cheeses
- High-mercury fish
- Excessive caffeine, keeping under 200mg daily
- Smoking and secondhand smoke
Mental health check-in
Hormonal changes can affect your mood. You might feel weepy, irritable, or anxious. This is normal. Talk to someone you trust about how you are feeling. If anxiety feels overwhelming, your GP can offer support.
When to seek help
Contact your GP or NHS 111 if you experience severe pain, heavy bleeding, dizziness, or vomiting that prevents you from keeping fluids down.
Summary
Week five is about nurturing your body, staying informed, and preparing for your first appointments. Keep taking your supplements, rest when you can, and reach out for support when needed.