Third trimester: weeks 29 to 40

The end of your pregnancy is in sight. It won't be long until your baby arrives. Feelings at this stage of pregnancy tend to vary from tiredness and worry to excitement about the baby.

week 29-40  infographic

The third trimester of your pregnancy is from week 29 to week 40 - months seven, eight and nine.

Feelings at this stage of pregnancy tend to vary from tiredness and worry to excitement about the baby.

Your baby continues to grow, and as the third trimester progresses she’ll have a better chance if she’s born early. You’ll have more checks with the midwife in the third trimester, because it’s important to keep an eye on your and your baby’s health.

The position your baby is in becomes more important now and you may start to think about what happens during labour.

If you can, use these last few weeks to get ready for the baby and enjoy some time for yourself, especially after you start maternity leave. If you have children already, you may find it hard to keep up with them sometimes. Take any offers of help you can get.

One important thing to remember in the third trimester is that you should now go to sleep on your side at night (and during any day time naps). You can read more here about why going to sleep on your side in the third trimester is safer for your baby.

Things to think about in the third trimester of pregnancy

You can still be active during the last three months, but you’ll probably find your body slowing down naturally. Walking is an ideal exercise.

You may also find that pregnancy yoga, Pilates or aquanatal classes are good ways to stay active in the third trimester. Staying active doesn’t have to be planned, though. We’ve got some good tips for staying active without going to the gym here.

If you haven’t written your birth plan yet, you may wish to do it now. As part of your birth plan, it’s good to think about the different kinds of pain relief that are available and what you may like to consider when you’re in labour.

Bear in mind, though, that your wishes may change and you might also need some extra help during labour and birth, so keep an open mind.

Find out more about exercise in the third trimester here

Find out more about the third trimester

Sources

1. Saigal S, Doyle LW (2008) ‘An overview of mortality and sequelae of preterm birth from infancy to adulthood’, Lancet 371(9608): 261–9: http://www.ncbi.nlm.nih.gov/pubmed/18207020

2. NICE (2008) ‘Antenatal Care’, NICE Clinical Guidelines 62, National Institute for Health and Care Excellence http://publications.nice.org.uk/antenatal-care-cg62

3. NHS Choices [accessed 3 March 2015] ‘Your birth plan’ http://www.nhs.uk/conditions/pregnancy-and-baby/pages/birth-plan.aspx 

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Last reviewed on April 1st, 2015. Next review date April 1st, 2018.

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Comments

  • By Abid nawaz (not verified) on 18 May 2018 - 23:59

    Plz tell me what a reason my wife is pregnant from 6,August 2017 and still she is pregnant 19,may 2018 plz tell me what a reason I m so worried about she I m waiting

  • By Midwife @Tommys on 21 May 2018 - 15:02

    Hi Abid, These dates indicate that she is 41 weeks pregnant. It is quite common for a woman to go slightly longer than her due date. Is she receiving care during her pregnancy? If you are concerned please try to arrange to see a midwife or a doctor. Best wishes

  • By tony (not verified) on 8 May 2018 - 23:16

    Hi my wife is pregnant with twins and in her third trimester. She feels pains in her thighs,waist and abdomen on and off. What could be the cause.

  • By Midwife @Tommys on 10 May 2018 - 14:41

    Hi Tony
    Congratulations on your Twinnies!
    It could be caused by many things- yourself or your wife are very welcome to get in touch via email or phone - [email protected] or 0800 0147800 to go through this in far more detail.
    It could be down to the weight of the babies/amniotic fluid/placenta on the body - this can cause hip/leg/abdo pain as there extra weight is a big strain on the body. It is possible that she has Pelvic girdle pain/Symphysis pubis dysfunction which can cause this pain too.
    If the pain is very severe though and she has not been seen in the hospital maternity triage, then she should go to be reviewed as soon as possible, just get checked over for peace of mind and be referred to a physio/consultant if needs be for further follow up.
    Please take good care of yourself, your wife and the babies :)
    Sophie Tommy's Midwife

  • By Seema Goyal (not verified) on 19 Apr 2018 - 14:10

    Quite helpful information..

  • By Midwife @Tommys on 19 Apr 2018 - 16:38

    Hi Seema, Thank you for your comment.

    We are pleased that you are finding the information helpful, take care, Tommy's Midwives x

  • By Sophia Eki (not verified) on 26 Jan 2018 - 17:10

    The info was quite helpful! Thank you very much for it!

  • By Midwife @Tommys on 1 Sep 2016 - 09:45

    That's excellent news!

  • By Eneah (not verified) on 26 Aug 2016 - 21:09

    It's helping

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