Morning Sickness in Early Pregnancy: Symptoms and Causes

For many pregnant women, one of the earliest signs of pregnancy is morning sickness . Despite the name, nausea and vomiting in pregnancy can happen at any time of the day or night. Some women feel mild nausea in early pregnancy, while others experience more persistent nausea or vomiting that can make daily life difficult. Although it can feel overwhelming, morning sickness is very common and usually improves as pregnancy progresses. Understanding the symptoms of morning sickness, its causes, and ways to relieve nausea can help pregnant women feel more confident managing this stage of pregnancy. If you are navigating pregnancy symptoms, you can also explore the Parenting Hub's free tools , which provide helpful resources and support for each week of pregnancy. What Is Morning Sickness? Morning sickness refers to nausea and vomiting during pregnancy , a condition that commonly affects pregnant women during the first trimester . Although it is called morning sickness, the symptoms may occur at any time of the day , including the afternoon or night. For some women, nausea may appear suddenly around the sixth week of pregnancy , while others experience symptoms earlier or later. Common symptoms of morning sickness include: Feeling nauseous during the day or night Vomiting during pregnancy Sensitivity to certain smells or foods Loss of appetite Feeling tired or dizzy Morning sickness is most common in the early stages of pregnancy , particularly in the first trimester. What Causes Morning Sickness? Morning Sickness in Early Pregnancy The exact cause of morning sickness is not completely understood, but several factors are believed to contribute. During the early weeks, hormone levels increase rapidly. Changes in hormones, particularly human chorionic gonadotropin hCG , are thought to play a major role in nausea and vomiting in pregnancy . Other factors that may contribute include: Increased sensitivity to smells Slower digestion Changes in blood sugar levels Emotional stress Genetic factors Because these hormonal changes occur quickly during the first-trimester , symptoms often appear during the early stages of pregnancy. In many cases, symptoms gradually improve as the body adjusts to these changes. When Does Morning Sickness Start and End? Morning sickness typically begins between week 5 and week 7 of pregnancy . For most pregnant women, symptoms peak during th…