Your baby is the size of a nectarine

14 Weeks Pregnant: Your Baby's Development

Your foetus still has a lot of growing to do, but is becoming more baby-like all the time, as the head becomes rounder and more proportionate to the rest of the body.

Now that you're 14 weeks pregnant the little one in your belly is already drinking, and yes… weeing!

If you're having an ultrasound scan around now, you might be lucky enough to see the foetus take little sips of amniotic fluid! As your little one's kidneys start to work, this fluid is then passed back into the amniotic sac as urine.

The Size of the Foetus at 14 Weeks Pregnant

At 14 weeks, your foetus is now about the size of a nectarine, measuring close to 8.5 centimetres crown to rump.

It can be hard to visualize what’s going on inside your belly, to help you get a bit more of idea, check out the illustration below.

foetus at 14 weeks pregnant

Mum's Body at 14 Weeks Pregnant

Your bump may or may not be showing yet, but there’s a whole lot going on inside your belly at 14 weeks pregnant regardless.

Until recently, your little one was still being nourished by a tiny yolk sac loaded with everything an embryo needs to grow into a foetus, but by now the outer layer of this ‘starter pack’ of nutrients has developed into a fully-functioning placenta.

This pancake-shaped organ, attached to the lining of the uterus, has taken over the job of supplying all the oxygen, nutrients and hormones a baby needs to grow. Your little one gets all of this via the umbilical cord, which connects the foetus and the placenta.

Did you know, your placenta is actually pulling off a clever trick? It brings your blood close enough to your baby’s blood for all the good stuff to be transferred, but it doesn’t let the blood mix. This is important, because your baby’s blood group might not be compatible with yours.

The placenta can also transfer things that aren’t good for your developing foetus, like certain medicines, alcohol, nicotine and other drugs.

This is why you should check with your doctor about any medicines you take to ensure they are safe during pregnancy; why you should quit smoking, if you haven’t already; and why experts recommend cutting out alcohol while you’re pregnant.

The second trimester is often referred to as the “honeymoon” period of pregnancy. This is because some of the pesky early pregnancy symptoms may start to subside and many mums-to-be experience some positives, including:

  • Having more energy and being less troubled by the common symptoms of early pregnancy like morning sickness and fatigue

  • Many mums-to-be also notice their hair getting shinier and thicker in the second trimester. If you’re wondering how far along you are, at 14 weeks pregnant you’re about 4 months pregnant.

14 Weeks Pregnant: Your Symptoms

Here are some of the symptoms you may be experiencing at 14 weeks pregnant:

  • Leg cramps. You may experience lower leg cramps in the second trimester. These can strike at any time of day, but are most common at night or when resting. Try to prevent them by doing regular stretching exercises and drinking plenty of fluids.

  • Swollen and bleeding gums. Pregnancy hormones can make your gums more sensitive to the plaque that builds up on your teeth, leading to soreness, swelling and bleeding. Help prevent this by brushing your teeth carefully at least twice a day for two minutes with fluoride toothpaste using a soft, small-headed brush, and doing your best to avoid sugary drinks and foods.

  • Leaky breasts. Stains in your bra or a thick, yellowy substance leaking from your breasts are probably just colostrum – the first milk produced by your breasts. This is normal, and in fact it means that your breasts are already gearing up to feed your baby. Consider using breast pads to soak up any leaking fluid if it's a problem.

14 Weeks Pregnant: Things to Consider

  • Around this time you may start showing – although every mum-to-be and every pregnancy is unique so it may happen a little earlier or later for you. Initially you may just feel that your jeans are a little snug. If you’re not showing yet, that’s OK too! It could be just a week or two away!

  • If you haven't been to the dentist in the last year, now's a great time for a professional clean and check-up. Your dentist can advise you on how to give your teeth and gums the extra special care they need when you're pregnant.

  • Travelling by air is usually OK at this stage. In fact, you might find it easier to travel this trimester as the nausea and fatigue of early pregnancy may have subsided. Before booking tickets, always read up on the airline's own rules on flying when pregnant. Find out how to make travelling a breeze while you're pregnant. Seek advice before visiting regions affected by Zika virus, which is associated with a risk of birth defects. In fact, it's probably always best to check your travel destination with your doctor first, as there may be issues you're not aware of that are worth taking into account before booking your holiday.

  • Get a bra fitting to make sure you are in the right size. You may have to move up a bra size or two at 14 weeks pregnant if your breasts have grown a lot since the start of your pregnancy. Some mums-to-be (or their partners) might be happy about this change, but for others the extra weight can be a drag, leading to backache and stretch marks.

  • Steer clear of germs. It's impossible to avoid all infections, but the good news is there's a lot you can do to reduce the risks. Here are some ideas on how:

  • Diseases like chickenpox or rubella can harm your foetus. You may already be immune to some of these, but if not – or if you're unsure – tell your doctor or midwife if you come into contact with an infected person.

  • Close contact with young children can carry a risk of infection with cytomegalovirus (CMV), a common virus that can cause problems for an unborn foetus. Washing your hands regularly with soap and hot water, and not sharing cutlery or food with small children, can cut down on the risk.

  • Harmful toxoplasma can be found in cat and other animal poo, so let someone else deal with the litter tray for now, and make sure it's sterilised frequently. Wear gloves when gardening and wash your hands immediately afterwards, as soil can contain traces of animal faeces. Read more about toxoplasmosis for more on this.

  • Undercooked meat, cured meat products like salami, and unpasteurised goat's milk and cheese can also contain toxoplasma, so it's best to give these a wide berth for the time being. Read more on what not to eat when pregnant for more on this important topic.

  • Ask your midwife or doctor for more advice on protecting your foetus from harmful infections.

14 Weeks Pregnant: Ask Your Doctor

  • Is your weight gain healthy and on track? Although your doctor or midwife is the one to give you personalized guidance and advice, in the meantime you can also play around with our pregnancy weight gain calculator.

  • What types of exercise are safe for this second trimester?

  • Is there anything you should be avoiding in the second trimester?

  • Can you use the same over-the-counter medicines or herbal remedies that you're used to?

14 Weeks Pregnant: Your Checklist

  • Search for an antenatal class in your area, and register. Free classes are available through the NHS, but you may want to register nice and early so you can secure your spot.

  • Schedule a dental appointment, if you haven’t already. Remember, dental treatment provided on the NHS is free during your pregnancy and until your baby is one year old. To claim this, you’ll need a maternity exemption certificate, available from your midwife or doctor.

  • If you’re working, you might want to think about bringing your boss into the loop. This isn’t just a courtesy – your maternity rights and the laws that protect you at work will only apply from the moment your employer knows about your pregnancy. Find out more about your entitlement to maternity leave. If you have a working partner, they might be entitled to paternity leave.

  • If you’re family and boss already know, have you broken the news to your co-workers yet? Try some of our ideas for announcing your pregnancy at work.

  • Sign up for even more weekly pregnancy tips:

How we wrote this article
The information in this article is based on the expert advice found in trusted medical and government sources, such as the National Health Service (NHS). The content on this page should not replace professional medical advice. Always consult medical professionals for full diagnosis and treatment.