During weeks 4–5, the fertilized egg has implanted into the lining of the uterus and is now called an embryo. Your body has started producing the hormone hCG, which means a pregnancy test can now show a positive result. The embryo is still tiny – about 1–2 millimeters – but development is rapid. One of the most important events during this time is the formation of the heart, which may even begin beating at the end of week 5, although it is too early to hear with a standard ultrasound.

The embryo now consists of three layers that will develop into different parts of the body. The inner layer will become the stomach, lungs, and digestive system. The middle layer forms the heart, blood vessels, muscles, and bones. The outer layer becomes the skin, hair, brain, and nervous system. The placenta is also beginning to form and will later supply the baby with oxygen and nutrients.

You may begin to feel early pregnancy symptoms as hormone levels rise, such as fatigue, breast tenderness, mild nausea, or cramping similar to menstrual pain. Some won’t feel anything – which is completely normal. The uterus is already working intensely – you can’t see it, but the body knows exactly what to do.

Alma’s tips 🌿

• If you take a pregnancy test, use morning urine for the most reliable result.

• Mild cramping can be normal, but seek care if the pain becomes strong.

• Don’t worry if you don’t feel symptoms – your body is still doing the work.

• This is a good time to start taking folic acid if you haven’t already .