JustParents
  • Pregnancy
    • Getting PregnantTrying to conceive and fertility support
    • Pregnancy AdviceGuides and support
    • Pregnancy Week by WeekTrack each stage
    • Baby NamesBrowse name ideas
    • Due Date CalculatorEstimate your due date
    • Gender PredictorA playful guess
    • Pregnancy Weight CalculatorTrack healthy gain
    • Ovulation CalculatorFind fertile dates
  • Parenting
    • Baby AdviceSupport for the first year
    • Parenting AdviceEveryday family tips
    • Family LifeRelationships, routines, and home life
    • Lullaby LyricsClassic bedtime songs
  • Community
    • Parent QuestionsAsk or answer questions
    • ForumsJoin the chat
    • Parenting JournalsRead parent stories
  • Reviews
Log in Join
  1. Home
  2. Pregnancy
  3. Week by Week
  4. First Trimester
  5. Week 7

Pregnancy Week 7

Fetal Development at week 7
Week
1
Week
2
Week
3
Week
4
Week
5
Week
6
Week
7
Week
8
Week
9
Week
10
Week
11
Week
12
Week
13
Week
14
Week
15
Week
16
Week
17
Week
18
Week
19
Week
20
Week
21
Week
22
Week
23
Week
24
Week
25
Week
26
Week
27
Week
28
Week
29
Week
30
Week
31
Week
32
Week
33
Week
34
Week
35
Week
36
Week
37
Week
38
Week
39
Week
40
Week
41
Week
42

Baby development this week

At 7 weeks pregnant, your baby is growing quickly. The head is developing faster than the rest of the body, partly because the brain and early facial features are changing so rapidly.

The brain is beginning to organise into different areas, while the face, eyes, ears and mouth continue their early development. The tiny arm buds that appeared recently are becoming more defined, and leg buds are starting to form too.

Your baby’s heart is already beating, and blood is beginning to circulate. The digestive system, lungs and other major organs are still in the early stages of development, but a lot is happening in a very small space.

The yolk sac is still supporting your baby in these early weeks, but the placenta is continuing to develop and will gradually take over more of the work as pregnancy progresses.

Did you know?

At this stage, your baby’s head looks unusually large compared with the rest of the body. That is not a problem, it reflects how quickly the brain and early nervous system are developing. 
 An early ultrasound may be able to show cardiac activity and measure the embryo from crown to rump, but scans this early can be limited. If your dates are even a few days out, what can be seen may change a lot. However, in the UK, most people will have their first routine dating scan later, between around 8 and 14 weeks.

Your womb as about the size of a lemon at 7 weeks, while your baby is growing very quickly.

What's happening to your body

At 7 weeks pregnant, you may still not look pregnant, especially if this is your first pregnancy. Many first-time parents do not start looking pregnant until around 12 weeks, although this varies.

Even if there is no visible bump yet, your body is working hard. You might notice:
  • nausea, with or without vomiting
  • tiredness
  • sore, fuller or heavier breasts
  • needing to wee more often
  • bloating or constipation
  • food aversions
  • a stronger sense of smell
  • mood changes
Needing to wee more often can be one of the early signs of pregnancy, including during the night. Constipation and increased vaginal discharge can also happen in early pregnancy.

Your breasts may feel tender or uncomfortable, and a more supportive bra may help. It does not have to be a “maternity” bra yet - comfort is the main thing.

Worth knowing

Symptoms can come and go in early pregnancy. Feeling less nauseous one day, or more tired the next, does not automatically mean something is wrong. However, contact your GP, midwife or early pregnancy unit if you have bleeding, strong or one-sided pain, shoulder-tip pain, dizziness, fainting, or symptoms that worry you. 

How you might be feeling

Week 7 can feel oddly in-between. You may feel very pregnant because of nausea, tiredness or breast tenderness, but there may be nothing visible to show for it yet.

That can be frustrating, especially if you are trying to keep the news quiet. You might be turning down drinks, avoiding certain foods, feeling exhausted, or trying to act normal while your body is doing something enormous in the background.

You may also feel anxious while waiting for your first appointment or scan. Symptoms can feel reassuring one day and worrying the next, especially if they come and go. Try not to use every symptom as a daily progress report. Early pregnancy can be unpredictable, and fluctuation does not automatically mean something is wrong.

If you are finding the emotional side difficult, speak to someone you trust or contact your GP, midwife or local maternity service. Support is part of pregnancy care too.

Things to think about this week

If you have not already contacted your GP surgery or self-referred to your local maternity service, this is a good week to do it. Your booking appointment will usually happen in the next few weeks, and your first routine scan is normally arranged for later in the first trimester.

Comfort and care ideas:
  • keep taking folic acid and consider a daily vitamin D supplement, following NHS pregnancy guidance 
  • find a comfortable bra if your breasts are sore
  • keep snacks and water nearby if nausea is worse when your stomach is empty
  • ask someone else to handle cat litter if possible
  • think about how much you want to share with friends, family or work
  • talk gently with your partner, if you have one, about how you are both coping
Cat litter advice is worth taking seriously, but it does not mean you need to panic about owning a cat. The NHS advises avoiding cat poo in litter and soil if you can. If you do need to empty a litter tray, wear gloves and wash your hands afterwards.

Small step for this week

Choose one comfort fix: a better snack plan, looser waistband, more supportive bra, or earlier bedtime. Small changes count.

Questions About This Week?

Every pregnancy unfolds a little differently. If something feels unclear or you just want reassurance, ask your question and hear from parents who understand.

Ask a question

Pregnancy ToolDue Date CalculatorWork out your due date and key pregnancy milestones in seconds.
Name FinderBaby NamesBrowse ideas, meanings and popularity trends to find a name you love.
Just For FunGender PredictorTry our playful Chinese gender predictor just for fun.
JustParents

JustParents is a friendly pregnancy and parenting community offering trusted advice, real-life experiences and support from trying for a baby through family life.

Pregnancy Pregnancy Articles Pregnancy Forum Baby Names Due Date Calculator Gender Predictor
Parenting Parenting Articles Questions & Answers Baby Forum Parenting Forum Parent Reviews
Learn more About Justparents Help & FAQs Write for us Contact us
© 2007-2026 JustParents. All rights reserved.
Terms of Use Privacy Policy Advertising