posted 27th November 2025
I Lost 3kg in the First Trimester — Should I Worry?
Pregnancy comes with so many changes — your body, your emotions, and even the number on the scale. A question we hear often at Daisyscan is:
“I’ve lost weight in my first trimester. Is this normal?”
The good news is that in many cases, mild weight loss in early pregnancy is normal, and you don’t need to panic. But it’s understandable to feel concerned — and that’s exactly why Daisyscanis here to support you.
Why Weight Loss in Early Pregnancy Happens
During the first trimester, your body is working hard behind the scenes to support your developing baby. At the same time, hormonal changes can influence your appetite, digestion, and energy levels. Some common reasons for weight loss include:
Morning sickness or nausea – even without vomiting, reduced appetite can lead to weight loss.
Food aversions – certain smells or tastes may suddenly feel intolerable.
Digestive changes – bloating, fuller sensations, or slower digestion can affect eating.
Healthier dietary choices – some women naturally shift to lighter, more balanced meals early in pregnancy.
Losing 1–3kg in the first trimester is actually quite common.
When Weight Loss Is Usually Not a Concern
If you're experiencing mild nausea, eating smaller meals, and still able to stay hydrated, weight loss of a few kilograms often isn’t harmful.
Most babies don’t require significant extra calories in the first trimester, so small fluctuations are expected.
Many women find that their appetite returns in the second trimester, and weight gain naturally picks up from there.
When You Should Seek Advice
Even though slight weight loss can be normal, it’s important to reach out to your midwife or GP if:
You’re unable to keep food or fluids down for more than 24 hours
You’ve lost more than a few kilograms rapidly
You feel dizzy, faint, or dehydrated
Symptoms are worsening rather than improving
You’re concerned about nutrition or your baby’s growth
Conditions like hyperemesis gravidarum (severe nausea and vomiting) can require medical support, so it’s always better to check in.
Tips for Managing First Trimester Weight Loss
If you’re struggling to eat or maintain weight, these gentle strategies may help:
Choose small, frequent meals rather than large ones
Keep easy snacks on hand — crackers, fruit, nuts
Stay hydrated with water, ice chips, or electrolyte drinks
Try ginger, peppermint tea, or vitamin B6 if recommended by your care provider
Avoid strong smells that trigger nausea
Focus on nutrient-dense foods when you can manage them
Remember: doing your best is enough. The first trimester can feel tough, and your body is still doing an incredible job.
Reassurance From Daisyscan
At Daisyscan, we understand how unsettling early pregnancy changes can feel. If you’re worried about your baby’s growth or simply want peace of mind, our early reassurance scans can help you feel more connected, informed, and confident during these early weeks.
Your well-being matters — and you’re never alone on this journey.