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Your Pregnancy – Week 12

Pregnancy Videos: First trimester

  • Your Pregnancy – Week 1

    Its week 1 of your pregnancy and you are not even pregnant yet, but theres still lots going on. Find out about your first trimester of pregnancy.

  • Your Pregnancy – Week 2

    Why should I take folic acid in the first trimester of my pregnancy? Find out all you need to know about week 2 of your pregnancy here.

  • Your Pregnancy – Week 3

    Am I actually pregnant yet? Find out how your baby is developing in week 3 and get your first trimester pregnancy questions answered.

  • Your Pregnancy – Week 4

    Is it too early to experience morning sickness? Dr Carol Cooper explains the changes occurring in your first trimester and in week 4 of your pregnancy.

  • Your Pregnancy – Week 5

    What are the first signs I’m pregnant? Click here to find out and learn about week 5 of your pregnancy and your first trimester.

  • Your Pregnancy – Week 6

    Is it okay to have a glass of wine now that I’m pregnant? Dr Carol Cooper answers your first trimester pregnancy questions here and explains whats going on at week 6.

  • Your Pregnancy – Week 7

    By week 7 your baby already has a beating heart. Find out more amazing facts about your developing baby during your first trimester here.

  • Your Pregnancy – Week 8

    Your baby may only be 10mm long in week 8 of your pregnancy but he is sending your body into overdrive with all of the pregnancy hormones racing around your body. Find out more about the first trimester of your pregnancy, as well as important advice on ca

  • Your Pregnancy – Week 9

    Suffering with sore and sensitive breasts during your first trimester of pregnancy? Get advice from Dr Carol Cooper on what you can do at week 9 here.

  • Your Pregnancy – Week 10

    What types of cheese should I avoid now that I’m pregnant? Dr Carol Cooper answers your first trimester pregnancy questions here and explains what your baby is doing at week 10.

  • Your Pregnancy – Week 11

    Are antenatal tests harmful to my baby? Click here to learn about week 11 of your pregnancy and what tests to expect during your first trimester.

  • Your Pregnancy – Week 12

    What are the symptoms of miscarriage? Dr Carol Cooper offers information and advice on first trimester pregnancy here, and what to expect at week 12.

Your baby’s first trimester development – week 12

Your baby is now 6cm long from crown to rump. His fingers and toes are now forming and at 12 weeks pregnant your baby has doubled in size in just a few weeks.

Whilst most of your baby’s organs are fully formed by this point, they have a lot of maturing to do over the coming months.

What are the symptoms of miscarriage?

As you enter week 13 of your pregnancy and you reach your second trimester the risk of losing your baby falls significantly1. Sadly, many women do not realise that miscarriage is common until 24 weeks of pregnancy1. Research suggests that 20% of pregnancies end in miscarriage; however in reality this percentage is likely to be a lot higher, as many miscarriages happen before a woman realises she is pregnant and mistakes the signs of an early miscarriage for her period1.

If you experience any pain or bleeding then visit your doctor or hospital. If the bleeding from a miscarriage does not stop on its own then you may need to undergo a procedure called womb evacuation1.

In rare cases an embryo or foetus dies but remains inside the womb. This type of miscarriage, called a missed miscarriage2, is usually only picked up during an ultrasound or midwife appointment, but if you notice your pregnancy symptoms suddenly stop then call your doctor.

Miscarriages are incredibly distressing, but it is important to remember that one miscarriage does not mean that you will have another.

Dr Carol Cooper, General Practitioner

Author of Pregnancy Essentials


1. Cooper, C., 2008. Pregnancy Essentials. London: Ryland Peters and Small.

2. NHS, 2011. http://www.nhs.uk/Conditions/Miscarriage/Pages/Symptoms.aspx. [online] Available at: < > [Accessed 22 March 2012]


10561 Revised November 2012

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