Week 1 Pregnancy

First Trimester

You are 1 weeks pregnant and in your first trimester. This week's key development: It Begins.

Baby's Development

Your baby is about the size of not here yet.

It Begins — Pregnancy is counted from the first day of your last period. Your body is quietly preparing, shedding its lining and building fresh, ready to receive new life. Conception hasn't happened yet, but the journey has already started.

Your Symptoms

Menstrual bleeding
Cramping
Mood swings
Fatigue

Every pregnancy is different. You may experience all, some, or none of these symptoms — and that's completely normal. If anything concerns you, speak to your midwife.

NHS Appointments

No appointments yet, but it's a good time to start taking folic acid and vitamin D.

Practical Advice for Week 1

Nutrition

Start taking 400mcg folic acid daily — this is the single most important supplement right now.
Take 10mcg vitamin D daily, as recommended by the NHS for all UK adults.
Eat plenty of leafy greens, beans, and fortified cereals for natural folate.
Stay well hydrated — aim for 6–8 glasses of fluid per day.

Exercise

Continue your normal exercise routine — there's no need to change anything yet.
Walking, swimming, and cycling are all excellent choices.
Start practising pelvic floor exercises (Kegels) to build a strong foundation.
Aim for 150 minutes of moderate activity per week, as the NHS recommends.

Wellbeing

If you're trying to conceive, try to reduce stress where you can — it genuinely helps.
Talk to your partner about how you're both feeling about this journey.
Get into a good sleep routine — aim for 7–9 hours per night.
Consider cutting back on caffeine to under 200mg per day (about 2 cups of coffee).

Preparation

Start taking folic acid and vitamin D if you haven't already.
Book a GP appointment or contact your local maternity service to discuss your plans.
Review any medications with your GP to check they're safe for pregnancy.
Check that you're up to date with vaccinations, especially rubella.

Tip of the Week

Start taking 400mcg of folic acid daily to help your baby's neural tube develop correctly.

Week 2

Track Your Due Date

Keep track of your pregnancy milestones, NHS scans, and countdown to your due date.

Go to Tracker

NHS Resources

Find trusted information on financial support, antenatal classes, and local maternity services.

View Resources

All Weeks

Browse the complete week-by-week pregnancy guide from conception to birth.

View All Weeks

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