What’s happening to the mother?

During this period, the stomach becomes larger and most people will find that the stomach becomes visible to others. During this phase, some women start to become aware of their baby moving, but most find that this takes a little longer.

Due to the amount of hormones in the body, you may experience mood swings.

It is common for your nose to become more blocked than usual, due to swollen mucous membranes. You may also find that you are sweating more than usual due to the increased amount of blood in your body. You will also get out of breath more easily than before because your heart has to supply enough oxygen for two people.

Development of the fetus

During two weeks in this period, the weight of the fetus doubles from about 80 to 160 grams. The suction reflex is developed and the fetus begins to suck on its fingers.

Pregnant woman at the doctor's.

Antenatal checks and tests

All pregnant women are entitled to antenatal care. The service is free and intended to ensure that you receive the best possible care and guidance during and after your pregnancy.

Illustration: Lev Dolgachov / Mostphotos

Feel life

Tips for pregnant women on how to monitor your baby’s movements. Information in Arabic, English, Norwegian, Polish, Somali, Spanish, Tigrinya and Urdu.

Zanzu

Information about pregnancy, childbirth and the postnatal period in Arabic, English, Farsi, French, Norwegian, Polish, Somali, Tigrinya and Turkish aimed at immigrants and others with a short period of residence in Norway.

Content provided by The Norwegian Directorate of Health

The Norwegian Directorate of Health. Pregnancy week 15 to 17. [Internet]. Oslo: The Norwegian Directorate of Health; updated Friday, May 9, 2025 [retrieved Monday, September 29, 2025]. Available from: https://www.helsenorge.no/en/pregnancy-and-maternity-care-in-norway/pregnancy-week-by-week/gravid-uke-15-til-17/

Last updated Friday, May 9, 2025