During the nine months that a healthy pregnancy normally lasts, both the mother and the developing foetus go through many changes. From a single egg, a little baby, perfect in every way, will grow. At check-ups during your pregnancy, your doctor or midwife will explain to you what is happening to you and your baby. You can also follow the progress of your pregnancy in our articles. Read about the changes that take place month by month that lead to the baby that you will be able to hold in your arms and kiss at the end of your pregnancy.
The description of development during pregnancy is divided into lunar months of 4 weeks or 28 days. That means there are 10 of them, even though we usually talk about pregnancy lasting 9 months. If you are pregnant you probably already know that pregnancy is counted from the first day of your last period, rather than from fertilisation of the egg.