Karwa Chauth Fast During Pregnancy: Is It Safe?

Karwa Chauth 2026: date and fasting hours

This year Karwa Chauth is on Thursday, 29 October 2026 (Kartik Krishna Chaturthi). The fast traditionally runs from sunrise until the moon is sighted. In Delhi, sunrise is around 6:30 am and moonrise around 8:15 pm, so a traditional fast lasts roughly 14 hours. Moonrise is earlier in some cities and later in others, so check your local panchang, and remember that haze and tall buildings can delay the moment you actually see the moon.

Many women keep the fast nirjala – without food or water. That last part is what matters most in pregnancy.

Is it safe to fast on Karwa Chauth while pregnant?

There is no study of Karwa Chauth itself, but research on Ramadan fasting – a similar daytime fast, often without water – gives us the best evidence we have. A 2018 review of 22 studies covering more than 31,000 pregnancies found no clear effect on birth weight or preterm birth. The same authors stressed that the evidence is not strong enough for doctors to say fasting is definitely safe, and that most studies did not look closely at mothers with health conditions.

In practice, this is what doctors look at:

• Dehydration is the bigger risk than hunger. Going 14 hours without water – especially if you’re busy with puja preparations, cooking or travelling – can cause dizziness, headaches, urine infections and, in later pregnancy, tightenings or contractions.
• Your blood sugar drops faster when you’re pregnant. Your body switches to burning fat sooner than usual, which can leave you shaky, weak or faint by the afternoon.
• Your situation matters more than the festival. A healthy woman in her second trimester with an uncomplicated pregnancy is in a very different position from someone with gestational diabetes, anaemia or twins.

Who should not fast at all

Please skip the fast, or speak to your doctor before even a modified one, if any of these apply to you:

• Gestational diabetes or pre-existing diabetes – especially if you take insulin or metformin
• High blood pressure, pre-eclampsia, or a history of it
• Anaemia (low haemoglobin) or you’re taking iron injections
• Severe morning sickness or hyperemesis gravidarum
• A twin or multiple pregnancy
• Your baby has been described as small for dates, or you have been told you have low amniotic fluid
• A history of preterm labour, bleeding in this pregnancy, or a low-lying placenta
• Kidney problems, recurrent urine infections, or any medicine that must be taken with food

If you’re in the first trimester and struggling with nausea, a fast can make it worse. Our morning sickness remedies explain why small, frequent meals matter so much in early pregnancy.

Safer ways to keep the vrat

Many families and priests accept a gentler fast for pregnant women. Talk it through with your elders and your doctor, then choose what feels right:

• Sajal vrat (with water): drink water, nimbu-pani, coconut water or buttermilk through the day. This alone removes most of the risk.
• Phalahar vrat: fruit, milk, dahi, makhana, nuts and sabudana khichdi at regular intervals – the same foods many people eat during Navratri fasts.
• A shorter fast: fast in spirit and keep the puja, but eat a light meal at your usual lunchtime.
• Your partner fasts with you, or for you. More and more couples observe Karwa Chauth together – it’s a lovely way to share the day.

What to eat for sargi

If you are fasting in any form, the pre-dawn sargi meal does the heavy lifting. Aim for slow-release energy, protein and fluids, not just sweets:

• Protein: milk or curd, paneer, a handful of almonds and walnuts, or besan chilla
• Complex carbohydrates: a whole-wheat paratha or roti, poha or daliya
• Fruit with water content: banana, papaya (ripe), apple, orange or pomegranate
• Fluids: two to three glasses of water and a glass of coconut water or lassi
• Go easy on pheni soaked in very sweet milk, fried mathri and salty snacks – they spike blood sugar and make you thirsty later

Take your usual iron, folic acid and calcium tablets as your doctor has advised. If a tablet must be taken with food, don’t skip it because of the fast. For more ideas, see our Indian pregnancy diet chart.

During the day

• Rest as much as you can. Let others handle the cooking, shopping and heavy puja preparation.
• Stay in a cool, airy room and avoid standing for long periods during the katha.
• Sit down to do the puja if you feel tired – it’s just as meaningful.
• If you’re in your third trimester, keep an eye on your baby’s movements through the afternoon. Not sure how far along you are? Use our pregnancy week calculator.

Warning signs: break your fast immediately

Have a glass of water or juice and something to eat straight away, and call your doctor or go to hospital if you notice:

• Your baby is moving less than usual, or you can’t feel the usual pattern of movements
• Dizziness, fainting or feeling like you might faint
• Severe headache, blurred vision or flashing lights
• Abdominal pain, cramps, regular tightenings or contractions
• Any vaginal bleeding or leaking fluid
• Very little urine, or dark-yellow urine
• Vomiting, or feeling shaky, sweaty and confused (signs of low blood sugar)
• A racing or pounding heartbeat

Breaking the fast after moonrise

After the moon puja, start with a glass of water and then a small, balanced meal – dal, roti, sabzi and a little rice. Eating a large amount of fried food and mithai on an empty stomach can bring on acidity, bloating and a big rise in blood sugar. Space out the sweets over the rest of the evening.

If you’re breastfeeding

Breastfeeding mothers need about an extra 700 ml–1 litre of fluid a day, so a nirjala fast can reduce your comfort and energy and may make your baby fussier at the breast. A sajal or phalahar vrat is the safer choice. If you have a newborn, or your baby feeds only on breast milk, check with your doctor before fasting.

Sources

• Glazier JD et al. The effect of Ramadan fasting during pregnancy on perinatal outcomes: a systematic review and meta-analysis. BMC Pregnancy and Childbirth, 2018;18:421. Read the study
• University Hospitals of Leicester NHS Trust. Ramadan fasting in pregnancy (patient information). View leaflet

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