Morning Sickness, Nausea and Vomiting – Typically confined to early pregnancy, though some women experience this symptom for up to six months.
Most women encounter morning sickness for about a month during their first trimester, and symptoms can start as early as 14 days after conception.
Morning sickness is not always confined to the morning, and it results from the changing levels of estrogen in the body.
Some women experience morning sickness with no trigger, while others will become nauseous from certain smells like cigarette or cigar smoke, strong perfume, coffee or the smell of certain foods cooking.