Introduction
Pregnancy is a time of excitement and anticipation—but it also comes with changes that deserve close attention. While most symptoms are normal, some warning signs can signal complications that require prompt medical care. By recognizing these red flags early, you and your provider can work together to keep you and your baby safe.
In this guide, we’ll explore the three most common conditions—gestational diabetes, high blood pressure and anemia—as well as other concerns that may arise. For each we’ll outline what to watch for, why timing matters and how to prepare for your call.
Keep in mind that every pregnancy is unique. If you ever feel uneasy about a symptom—no matter how small—trust your instincts and reach out. Your provider would rather hear from you early than miss a developing issue.
Let’s dive into the key warning signs you need to know—and exactly when to pick up the phone.
Gestational Diabetes Warning Signs
Gestational diabetes affects about 7 percent of pregnant women. It develops when hormones block insulin’s action, causing high blood sugar. Although most providers screen between 24 and 28 weeks, symptoms can occur earlier or later.
Watch for excessive thirst and dry mouth—even after drinking fluids—and frequent urination. You might also notice sudden weight gain or unexplained fatigue despite a balanced diet and rest. These signs indicate your body could be struggling to regulate glucose.
If you experience blurry vision or recurrent yeast infections—another indicator of elevated sugar—contact your provider right away. Early detection lets you start diet changes, exercise plans or, if needed, medication to keep levels in a safe range.
Timely treatment helps prevent complications such as large birth weight, low blood sugar in the baby at birth and higher risk of type 2 diabetes later. Your provider may adjust your prenatal visits and offer a nutritionist referral to keep you on track.
High Blood Pressure Warning Signs
High blood pressure—especially when it develops after 20 weeks—is a hallmark of preeclampsia. Left unchecked, it can harm both you and your baby. Routine blood pressure checks will catch most cases, but you should also know the symptoms.
Sudden swelling in your hands, feet or face may signal fluid retention. Pay attention if you wake with a puffy face or rings feel tight. Severe headaches that do not respond to acetaminophen and visual disturbances like flashing lights or blurred vision are also warning signs.
Other red flags include upper belly pain (often under the ribs on the right side), nausea, vomiting and shortness of breath. These can point to liver or lung involvement and require emergency evaluation.
If you experience any of these symptoms—especially combined with a blood pressure reading over 140/90 mmHg—call your provider or go to your nearest maternity unit. Early management reduces risk of seizures, placental abruption and growth restriction in your baby.
Anemia Warning Signs
Anemia—usually from iron deficiency—occurs when you lack enough healthy red blood cells to carry oxygen. Mild cases are common in pregnancy, but severe anemia can cause fatigue and affect your baby’s development.
Symptoms include persistent tiredness, weakness when climbing stairs, pale skin and shortness of breath with minimal exertion. You may notice pounding heartbeats or dizziness when standing up quickly.
If you experience these signs—especially if routine labs show low hemoglobin—call your provider to discuss iron supplements or dietary adjustments. Some women may require intravenous iron or close monitoring to correct levels.
Addressing anemia early supports healthy oxygen delivery to your baby and helps you maintain energy through those final trimesters and labor.
Other Common Conditions to Watch For
Beyond these three, you may encounter issues like preterm labor, urinary tract infections and severe nausea (hyperemesis gravidarum). Each has its own early warning signs:
- Preterm labor: Regular contractions before 37 weeks, lower back pain or pelvic pressure.
- Urinary tract infection: Burning with urination, cloudy or strong-smelling urine, lower abdominal discomfort.
- Hyperemesis gravidarum: Persistent vomiting, inability to keep food or fluids down, rapid weight loss.
Keep a symptom journal between visits so you can share dates, times and any patterns you notice. This helps your provider make accurate assessments and tailor treatments.
When to Call Your Provider
Deciding when to call can feel tricky. As a rule of thumb, don’t hesitate if symptoms are new, severe or worsening. Use your provider’s after-hours line if needed—no concern is too small.
If you’re unsure whether to call, ask yourself: Has this symptom changed since my last visit? Is it interfering with daily life? Does it feel unusual compared to earlier weeks? When in doubt, pick up the phone.
Remember, timely communication can prevent minor issues from becoming emergencies. Your provider’s team is there to support you 24/7 during this critical time.
Key Takeaways and FAQs
Key Takeaways:
- Monitor thirst, swelling, fatigue and headaches closely.
- Trust your instincts—no symptom is too small to report.
- Early treatment improves outcomes for both you and your baby.
FAQs
What if I’m not sure my symptom is serious?
Always call your provider’s office. They can help you decide if an office visit or emergency care is warranted.
Can I google symptoms before calling?
It’s fine to research, but avoid self-diagnosing. Use reputable sources and then discuss findings with your provider.
How quickly will my provider respond?
Most practices return after-hours calls within 30 minutes. For severe symptoms, calling emergency services is best.
Keeping open lines of communication with your care team empowers you to navigate pregnancy with confidence. If you ever feel concerned, don’t wait—call your provider today.
