Pregnant women who are six months or further along in their pregnancy may be asked to present a medical certificate to travel. Those experiencing complications need to provide a certificate regardless of the pregnancy stage.
Furthermore, embarkation may be denied if birth is expected within some days of departure or occurred recently, with the ship's Master having the discretion to refuse embarkation for safety reasons. Therefore, pregnant passengers should always inform the ship's crew before boarding and check with the ferry company the current terms & conditions.