Why does morning sickness happen?
Nausea and vomiting in pregnancy (NVP) usually begins around 5–6 weeks, peaks around 8–10 weeks and eases for most women by 14–16 weeks. The exact cause isn’t fully understood, but rising levels of the pregnancy hormone hCG, oestrogen and a hormone called GDF15 all appear to play a part. A heightened sense of smell makes things worse – which is why the smell of tadka, tea or a crowded bus can suddenly be unbearable.
Mild to moderate morning sickness is not harmful to your baby, even if you can’t eat a balanced diet for a few weeks. Your baby draws on your body’s stores. What matters most is staying hydrated.
Food and eating habits
- Eat before you get up. Keep plain biscuits, khakhra, rusk or dry toast by the bed and nibble a few before getting out of bed.
- Small and often. Eat something every 2–3 hours. An empty stomach makes nausea worse.
- Choose bland, dry, starchy foods. Poha, upma, idli, plain rice, khichdi, boiled potatoes and bananas are often tolerated best.
- Cold over hot. Cold foods smell less. Curd rice, fruit, chilled buttermilk or a sandwich may go down more easily than a hot meal.
- Protein snacks. Roasted chana, peanuts, paneer cubes or a boiled egg can settle nausea for longer than sugary snacks.
- Separate food and drink. Sip fluids 30 minutes before or after meals rather than with them.
- Avoid triggers. Greasy, fried, very spicy food and strong cooking smells are common culprits. Let someone else cook if possible, and keep windows open.
Drinks and hydration
- Sip, don’t gulp. Small sips of water, coconut water, nimbu pani, clear soups or ORS through the day.
- Ginger. Ginger tea, a slice of fresh ginger or ginger candies have reasonable evidence for easing nausea. Stick to food amounts.
- Lemon. Sniffing a cut lemon or sucking on a lemon drop helps some women with smell-triggered nausea.
- Ice chips or popsicles if you can’t keep drinks down.
Lifestyle tips
- Rest. Tiredness makes nausea worse. Nap when you can.
- Fresh air. A short walk or sitting near an open window helps.
- Acupressure at P6. Pressing the point about three finger-widths below the wrist crease on the inner arm, or wearing an acupressure band, helps some women.
- Change the timing of your iron tablet. If prescribed iron or prenatal vitamins make you feel sick, ask your doctor whether you can take them at night or switch to a folic-acid-only tablet in the first trimester.
Medicines that doctors may prescribe
If home measures aren’t enough, don’t suffer in silence. Safe, well-studied medicines exist, including doxylamine with pyridoxine (vitamin B6), which is widely prescribed in India, and other anti-sickness medicines such as ondansetron in some situations. Never take anything – including over-the-counter or herbal remedies – without your doctor’s advice.
When to worry: hyperemesis gravidarum
Around 1–3% of pregnant women develop hyperemesis gravidarum (HG), a severe form of pregnancy sickness that can cause dehydration and weight loss and usually needs treatment, sometimes in hospital with IV fluids.
Contact your doctor the same day if you:
- cannot keep any food or fluid down for 24 hours
- pass very little, dark urine, or none for 8 hours or more
- feel dizzy or faint when standing up
- vomit blood, or have abdominal pain or fever
- have lost more than 2–3 kg
Does it mean anything?
Many old wives’ tales link morning sickness to having a girl, or say that no sickness means something is wrong. Neither is reliable. Lots of women with perfectly healthy pregnancies never feel sick at all. Curious about your timeline? The week-by-week guide shows what to expect each week, including when nausea usually eases.
Frequently asked questions
When does morning sickness start and end?
It usually starts around 5–6 weeks, peaks at 8–10 weeks and eases by 14–16 weeks for most women. About one in ten women have symptoms beyond 20 weeks.
Can morning sickness harm my baby?
Mild to moderate nausea and vomiting does not harm your baby. Severe vomiting with dehydration (hyperemesis gravidarum) needs treatment to protect both of you.
Is it safe to take medicine for morning sickness?
Several medicines have a good safety record in pregnancy, such as doxylamine–pyridoxine. Always take them only as prescribed by your doctor.
Medical disclaimer: The results and information on this page are estimates for general education only. They are not a diagnosis and do not replace advice from your gynaecologist, obstetrician or midwife. If you have pain, bleeding, reduced baby movements or feel unwell, contact your doctor or call 108 immediately. Read the full disclaimer.
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