When you first find out your pregnant, your excitement may make nine months seem like a long time to wait to meet your new little one. But, once you start seeing those changes week to week as your body and the baby grow, time will fly by!
Let our Weekly Pregnancy Guide you through the various stages of development for both mother and baby.
The First Trimester
The First Trimester begins on the first day of your last period and lasts until the end of week 12. This means that by the time you know for sure you’re pregnant, you might already be five or six weeks pregnant!
A lot happens during these first three months. The fertilised egg rapidly divides into layers of cells and implants in the wall of your womb where it carries on growing. These layers of cells become an embryo, which is what the baby is called at this stage.
During this trimester, your baby grows faster than at any other time. By six weeks, a heartbeat can usually be heard and by the end of week 12, your baby’s bones, muscles and all the organs of the body have formed. At this point, your baby looks like a tiny human being and is now called a fetus. He or she will even be practising swallowing!
The full weekly pregnancy guide can be found here: Pregnancy Guide: The First Trimester
The Second Trimester
The Second Trimester of your pregnancy is from week 13 to week 28 – months four, five and six.
As well as feeling and looking more pregnant during these weeks, you may also have more energy than you did in the first trimester. This will come as a great relief if you have been struggling with sickness, tiredness or anxiety about getting through the First Trimester
As you go through the second trimester, you’ll gradually see your ‘bump’ grow and later you’ll start to feel your baby moving.
The full weekly pregnancy guide can be found here: Pregnancy Guide: The Second Trimester
The Third Trimester
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.
The full week-by-week guide can be found here: Pregnancy Guide: The Third Trimester