Pregnancy Week by week - First Week

1 week pregnant - This week expectation

It is highly unlikely you even know you are pregnant right now – but there are a whole lot of things already going on with you and your unborn baby.

Your baby at week one

Your baby’s s*x is already decided this early! – So baby is growing faster now than at any other point in your pregnancy, and their brain, heart and spine are already forming. It's doubtful you are feeling any signs of their presence this early though.

You at one week pregnant

If you have been trying to conceive, you've hopefully been taking folic acid supplements already, but if you haven't, now's the time to start because this is so important for your developing baby.

And guess what – because of how pregnancy is calculated, at this stage, just a week into your pregnancy, you are actually already considered to be one month pregnant!

What to think about in week one

Even though you probably have no idea you have a baby on board right now, if you have been trying to conceive, you are no doubt already making lots of plans for when you do have your little one, and eagerly awaiting that positive result on your pregnancy test! Obviously your health – and that of your unborn baby – is paramount throughout pregnancy, and never more so than in these very early days of conception and development.

(must read: 6 Very early symptoms of Pregnancy)