Pregnancy is often associated with weight gain, not weight loss. But for many women — especially in the first trimester — weight loss is more common than you might think. So, when is it part of the process, and when is it a warning sign?
Let’s break it down.
Why Weight Loss Happens in Early Pregnancy
In the first trimester, your body is adjusting to rapidly shifting hormones. Nausea, vomiting, food aversions, and loss of appetite are all common and can lead to modest weight loss — especially if you’re struggling to keep food or fluids down.
It’s not unusual for some women to lose up to 5% of their body weight in early pregnancy due to morning sickness. But beyond that, weight loss can start to pose a risk to both you and your baby.
When Weight Loss Is a Concern
Weight loss becomes a red flag when:
You’re losing more than 5–10% of your pre-pregnancy weight
- You can’t keep any food or fluids down for more than 24–48 hours
- You’re experiencing signs of dehydration (dark urine, dizziness, fast heart rate)
- You’re diagnosed with hyperemesis gravidarum (severe nausea and vomiting)
Excessive weight loss in pregnancy can lead to nutrient deficiencies, dehydration, electrolyte imbalances, and in rare cases, complications for fetal growth. That’s why it’s critical to assess symptoms early and seek support before things escalate.
You can use a clinically validated weight loss calculator developed by the HER Foundation to better understand whether your pregnancy-related weight loss is within a safe range. This tool helps you assess how much weight you’ve lost compared to your pre-pregnancy weight and whether it’s time to seek medical support
How Materna Supports You
At Materna, we specialize in caring for women during the first trimester — especially when symptoms like nausea, vomiting, or unintentional weight loss start to interfere with daily life. If you’re unsure whether your weight loss is normal, we offer:
Same-day assessments for early pregnancy symptoms
- IV fluids and electrolyte support
- Access to safe medications to help control nausea
- On-site ultrasounds to check for complications
- Compassionate, judgment-free care designed to help you feel better faster
Don’t Wait Until It’s an Emergency
You don’t need to wait for a hospital visit to take your symptoms seriously. Materna bridges the gap between that positive pregnancy test and your first OB appointment — so you get care exactly when you need it.
Securing your Content Management System is vital to protect your website from threats. Implementing best practices can significantly reduce vulnerabilities.
Best Practices
- Regular Updates: Keep your CMS and plugins updated.
- Strong Passwords: Use complex passwords for all accounts.
- Backup Data: Regularly back up your website data.
By following these practices, you can enhance your CMS security.
We're here for you - from the start
We’re redefining maternal health by replacing the ER with a welcoming, evidence-based care environment that centers you: your body, your symptoms, your experience.
Schedule a visit
Compassionate support for every stage of pregnancy
Contact
Connect with our dedicated support team
Phone
Direct line for immediate healthcare guidance
Office
Women's health center in
130 7th Ave S NY, NY 10014
130 7th Ave S NY, NY 10014
Related blogs and articles

Your First Trimester Ultrasound: What to Expect Week by Week
Wondering what your first trimester ultrasound will show? This week by week guide covers exactly what to expect on an early pregnancy scan, from the gestational sac at 5 weeks to your baby's heartbeat at 6 weeks and beyond.

Follicular Monitoring: When you are Out of Town
Everything you need to know about follicular monitoring for IVF and IUII, including outside monitoring, remote IVF monitoring, and satellite monitoring in New York City. Same-day ultrasound and bloodwork results by 2 PM EST for patients whose fertility clinic is anywhere in the world.

HCG Testing: What It Really Tells You in Early Pregnancy(and What It Doesn’t)
What the "pregnancy hormone" really tells you and why trends, timing, and ultrasound matter far more than a single number.
