Young couple sitting together looking at ipad with Ultrasound scan image

Pregnancy Trimesters

Congratulations, you're pregnant! If this is your first time, you're in for one hell of a ride!

One of the best things to do is to educate yourself on the wild and wondrous stages that you and your growing baby will go through.

Your pregnancy will span anywhere between 38 and 42 weeks, or approximately nine calendar months. Unless you r baby is born prematurely, that is, before 38 weeks.

All pregnancies are measured from the first day of a woman's last normal menstrual period (LNMP). If you are unsure when your LNMP was, ask your chosen healthcare professional about having an early ultrasound. An ultrasound can be an accurate way of finding out the gestational age of your baby.

The weeks of your pregnancy are commonly grouped into three trimesters. Each trimester represents three months and a different and distinct stage of your pregnancy.

In this section discover what you and your baby will experience in each trimester.

First Trimester

The beginning of this trimester is measured from before your baby was a twinkle in your eye. It is measured from the first day of your LNMP, which is before you even conceived. This is because it's the first day that your body starts preparing for a pregnancy.

The first trimester of pregnancy spans from week one to thirteen, or the first three calendar months. And for about half of this time, you might not even know you're pregnant!

You may find out you're pregnant by doing a home pregnancy test. By the end of this trimester you should also have your pregnancy confirmed by a healthcare professional. Choose someone who you feel comfortable with and who you can afford If you haven t visited a midwife, doctor or specialist obstetrician yet now is the time.

Second Trimester

Making it past the first trimester is a reassuring feeling for all pregnant women. About 95% of your baby's core development is behind both of you. Your baby's essential organs and body systems should be in place and fully formed.

In the second trimester your baby will continue to mature and increase in size. Amazingly, this increase will be by 300 to 400% in your second trimester. He or she will also start to look more and more like the little person they will become.

Exhaustion and nausea experienced in early pregnancy should also begin to settle down. This trimester is commonly labelled as the feel good trimester. Hopefully, you will have more energy, be feeling more comfortable and just better overall. Try to make the most of these exciting three months.

Third Trimester

Reaching your third trimester will give you a great sense of achievement.

All of your baby's organs and systems will be preparing for life outside the womb. Although they have been fully formed since around 12 weeks of pregnancy, an enormous amount of maturity and development has been taking place since then. No doubt, will have been feeling some of them!

Your baby's movements will also become stronger and more defined in the third trimester. As your baby grows it will quickly run out of space to wriggle around in your uterus. This means that you will feel every kick and movement more clearly when they shift position.

Your third trimester may last up to 42 weeks. And your baby could be born anytime onwards from 37 weeks. Only 5% of babies are born on their exact due date. Remember that every pregnancy and every baby is unique so do your best to go with the flow. And to make the most of this amazing time.

16/09/21 - min Read


Try Our Tools

Discover our most popular tools to help
you along the way
Tile image


Try It Now
Tile image

Due Date

Try It Now
Tile image

Huggies® Baby
Names Generator

Try It Now
Tile image

Baby Eye
Colour Predictor

Try It Now
Tile image


Try It Now

Promotions & Offers

Explore our exciting promotions.
Win Six Months Supply of Huggies

Win Six Months Supply of Huggies

Learn More

Win FREE nappies for 6 months!

Join the Huggies Club for your chance to WIN
Join Huggies Club

We’re proudly partnered with: