At a glance
Find out about the science of early development
Book in to see your doctor as soon as your pregnancy test is positive
Make sure your pregnancy diet consists of a variety of healthy foods
Keep moving – exercise can help with your baby’s development
Baby's development at 5 weeks
There’s a small person coming your way soon.
So, you've taken a pregnancy test and it was positive. Congratulations! An amazing adventure is about to begin, one of the best in your life. Nothing is visible yet, but that won’t last for long.
Your baby’s heart is already beating! Even though it’s just a tiny little speck, your baby is now an embryonic disc with three layers of cells that will eventually form its whole body. The science is just incredible. The inner layer, known as the endoderm, will become your baby’s digestive tract, liver, pancreas and respiratory system. The outer layer, known as the ectoderm, will form its nervous system and a whole bunch of different organs, such as skin; and nails and hair. The third layer will form most of the skeletal structure, heart, urinary tract and sexual organs. In the middle is the notochord, which will serve as a temporary backbone from which the central nervous system, brain and head will form. All that, with a diameter the same size as a single human hair!
Taking care of yourself and what you eat is now more important than ever. You’re probably going to start feeling a bit more peckish than usual, and you’re not alone. Countless mums experience all sorts of cravings from watermelon and chocolate to hot sauce on ice. But even if you’re feeling really hungry, watch your portion sizes, as you certainly don’t need to start ‘eating for two’.
Make sure your pregnancy diet consists of a variety of healthy foods to get the right balance of nutrients for you and your baby. And it’s a great idea to include moderate physical exercise throughout your pregnancy too. All these things will help your little one grow up to be healthy and strong.
How can you know for sure if you’re really pregnant? One of the first signs of pregnancy is when your period doesn’t arrive on time. At week 5, a pregnancy test can now reliably tell you whether there really is a baby on the way. But to be absolutely certain, you need to visit your doctor. And the earlier, the better. Not just to be sure, but to reduce any potential complications. Plus, they’ll be able to give you a more accurate due date too.