Navigating Flu Season Safely While Pregnant: An Americord Guide

If I’m pregnant during flu season, the main steps are simple: get a flu shot in any trimester, cut down exposure at home and work, call my provider soon if flu symptoms start, and go to the ER for warning signs like trouble breathing, chest pain, dehydration, or less fetal movement.

A few numbers stand out:

• Flu season usually runs from October through May in the U.S.
• Pregnant people have about a 3x higher flu-related hospitalization rate
• Maternal flu vaccination is linked to about a 48% drop in lab-confirmed flu in infants
• It is also linked to about a 72% drop in flu-related hospital stays in babies under 6 months

Here’s the short version:

• Best prevention: the flu shot every season
• Safe vaccine types in pregnancy: IIV and RIV
• Avoid during pregnancy: the nasal spray flu vaccine (LAIV)
• If symptoms start: call within 24 hours
• Best treatment window: antivirals work best within 48 hours
• Fever threshold to report: 100.4°F or higher
• Emergency signs: severe shortness of breath, chest pain, fainting, blue or gray lips, can’t keep fluids down, or reduced fetal movement

This article is about one thing: helping me keep flu risk lower during pregnancy with plain steps that are easy to follow.

Flu Vaccination During Pregnancy: What You Need to Know

The flu vaccine is the main step to protect yourself during pregnancy. Get it every year as soon as the seasonal shot is available. If you get it later, it can still help while flu is going around.

Which Flu Vaccines Are Safe During Pregnancy and Which to Avoid

During pregnancy, only flu shots are recommended. Inactivated influenza vaccines (IIV) and recombinant influenza vaccines (RIV) are both given as shots, and both are safe to get while pregnant.

The live attenuated influenza vaccine (LAIV) is the nasal spray. It is not recommended during pregnancy because it contains weakened live virus.

Vaccine Type	Form	Recommended During Pregnancy?
Inactivated influenza vaccine (IIV)	Shot	✅ Yes
Recombinant influenza vaccine (RIV)	Shot	✅ Yes
Live attenuated influenza vaccine (LAIV)	Nasal spray	❌ No

Whether you're at your OB office, a pharmacy, or a worksite clinic, ask for the flu shot and double-check that it is IIV or RIV.

What the Safety Data Shows for Mother and Baby

The safety data here is strong. Decades of research and safety monitoring show that flu vaccination during pregnancy does not increase the risk of miscarriage, birth defects, preterm birth, or low birth weight. ACOG notes that no scientifically reproducible evidence links flu vaccination to miscarriage.

The shot helps your baby too. When you get vaccinated during pregnancy, antibodies pass to your newborn. That matters because infants under 6 months are still very young and need extra protection. Studies show that maternal flu vaccination is linked to about a 48% reduction in laboratory-confirmed influenza infection in infants and a 72% reduction in flu-related hospitalizations in that age group.

Common Vaccine Questions to Discuss at Prenatal Visits

If you've had a past vaccine reaction, or if you're worried about ingredients like egg proteins or thimerosal, bring that up at your next prenatal visit before you get vaccinated. For people with egg-related concerns, egg-free recombinant vaccines (RIV) are an option.

Mild side effects are common and usually pass fast. These can include:

• soreness at the injection site
• fatigue
• a low fever

Those short-term side effects are safer than getting the flu during pregnancy.

You can also get the flu shot at the same visit as other recommended pregnancy vaccines, such as Tdap. Add it to your prenatal notes so your care team knows you're protected. After vaccination, it also helps to cut down exposure with daily hygiene and fewer risky contacts.

How to Reduce Flu Exposure at Home, Work, and Prenatal Visits

Vaccination cuts your risk, but your day-to-day habits matter too. A few simple steps can lower exposure even more and help keep prenatal care, delivery plans, and recovery on track.

Daily Habits That Help Prevent Flu Spread

Wash your hands with soap and water for at least 20 seconds. Do it after being in public, before eating, after coughing or sneezing, after using the restroom, and after caring for someone who is sick. If you can't get to a sink, use an alcohol-based hand sanitizer with at least 60% alcohol.

Try not to touch your face with unwashed hands. If you cough or sneeze, cover it with a tissue or the inside of your elbow. Throw tissues away right away, then wash your hands.

During flu season, clean high-touch surfaces at home at least once a day. Focus on the spots people reach for without thinking, like doorknobs, light switches, phone screens, keyboards, and refrigerator handles.

Managing Exposure Risks at Home and at Work

At home, vaccinated household members are less likely to bring flu back with them. If someone in your house gets sick, use a separate bedroom and bathroom if you can. Don't share cups, utensils, or towels, and cut down on close contact while they're sick. If friends or relatives feel unwell, ask them to visit another day. Opening windows can also help when the weather and air quality are okay.

At work, wipe down shared surfaces on a regular basis, including conference tables, breakroom counters, and shared keyboards. If a coworker is sick, give them space. When possible, use messaging or video calls instead of meeting face-to-face. Wash or sanitize your hands before and after meetings, after using shared equipment, and after riding public transportation or elevators.

If your job means close contact with lots of people or time in crowded spaces, talk with your prenatal provider about short-term changes during peak flu activity.

Steps to Take Before and During Prenatal Appointments

Before you head to your OB's office or a prenatal clinic, call first if you have symptoms like fever, cough, sore throat, or body aches. The office can tell you whether you should come in, switch to telehealth, or move the visit to another day.

When you do go in person, use the hand hygiene stations at the entrance and follow any masking guidance posted by the clinic. Skip touching shared waiting room items if you can. It's also smart to ask whether sick visits are scheduled separately from routine prenatal care.

If symptoms start, the next step is figuring out whether they match flu and what kind of care you can handle at home.

Recognizing Flu Symptoms and Managing Mild Illness Safely

Even if you're careful, flu can still slip through. The big thing is spotting symptoms early so you can protect yourself and your baby and get help fast.

How to Tell Flu Symptoms Apart From a Common Cold

Flu tends to come on fast and feel intense. A cold usually creeps in more slowly.

Classic flu symptoms include a sudden fever of 100.4°F or higher, chills, cough, sore throat, headache, body aches, and heavy fatigue. Some people also have vomiting or diarrhea. During pregnancy, that pattern matters because symptoms can get worse in a short time. If what you're dealing with looks like flu, call your provider right away.

Home Care and Medication Points to Confirm With Your Provider

If you're sick, rest, drink fluids, and use light clothing or bedding if you have a fever.

For medicine, acetaminophen (Tylenol) is generally the preferred option for fever and aches during pregnancy, but only after your provider says it's okay for you. Don't start any OTC cough, cold, or congestion medicine without checking first. That includes multi-symptom products, decongestants, expectorants, and nighttime remedies.

Why be so careful? A lot of these products mix several active ingredients in one box or bottle. Some oral decongestants, such as pseudoephedrine, may carry risks during pregnancy. If your provider wants to check an OTC product, have the exact package or ingredient list with you during the call. That makes it much easier for them to give you a clear answer.

Call your provider as soon as symptoms begin. Antiviral treatment works best within 48 hours. If you wait, you may miss that window.

Table: Flu Symptoms, Home Care Steps, and When to Get Provider Approval

Use this table as a quick check for home care and when to call.

Symptom	At-Home Care	Call Provider First?
Fever (≥100.4°F)	Rest, fluids, light clothing or bedding	Yes - Confirm acetaminophen use and dosing
Body aches & headache	Rest	Yes - Confirm acetaminophen before use
Cough	Rest	Yes - Check any OTC cough medicine first
Congestion	Rest	Yes - Check any OTC congestion medicine first
Fatigue	Rest as much as possible	Call if severe or worsening
Vomiting or diarrhea	Fluids and close symptom monitoring	Call if you can't keep fluids down

When to Call Your Provider and When to Go to the ER

When to Contact Your Provider Soon After Symptoms Start

If flu symptoms begin, act fast. Vaccination and exposure control can lower your risk, but if flu still gets through, early action can help cut the chance of complications.

Call your OB/GYN or midwife within 24 hours of symptoms starting. That matters because treatment may need to begin quickly, and antiviral treatment works best when started within 48 hours.

Reach out promptly if you have a fever of 100.4°F or higher, a cough that’s getting worse, or close contact with someone diagnosed with flu and you’re now showing symptoms. The same goes if you can’t keep fluids down or you have an underlying condition like asthma, diabetes, or heart disease. Those conditions increase the risk of serious complications and call for same-day assessment.

When you call, have this information ready so your provider can decide on next steps faster:

• Gestational age
• When symptoms started (date and approximate time)
• Your current and highest recorded temperature
• Flu vaccination status for this season
• Any underlying conditions and current medications

Emergency Warning Signs That Need Immediate Care

Some symptoms are beyond the “wait for a call back” stage. If any of these show up, go to the ER or call 911 right away.

Severe shortness of breath at rest, chest pain or pressure, confusion, fainting, or blue or gray lips can point to something more serious, such as pneumonia or respiratory failure. Persistent vomiting that keeps you from holding down any fluids, extreme dizziness, or urinating very little also need ER-level care.

Reduced fetal movement for several hours, especially during the third trimester, is another sign to go straight to labor and delivery or the ER. Don’t wait it out. The same is true if symptoms seem to get better and then hit again. That pattern can signal a secondary infection like bacterial pneumonia and needs same-day evaluation.

Table: When to Call Within 24 Hours, Seek Same-Day Care, or Go to the ER

Use the table below to match symptoms with the right level of care.

Symptom	Likely Significance	Recommended Response
Mild flu symptoms, fluids still going down	Possible early flu	Call provider within 24 hours
Fever ≥100.4°F or worsening symptoms	Higher-risk influenza	Same-day urgent evaluation
Underlying condition (asthma, diabetes, heart disease) plus any flu symptom	Elevated complication risk	Same-day urgent evaluation
Fever ≥102–103°F that does not come down with acetaminophen	Risk of maternal and fetal complications	Same-day urgent evaluation
Shortness of breath with activity, but able to speak in full sentences	Possible worsening flu	Same-day urgent evaluation
Persistent vomiting, unable to keep fluids down, dizziness, urinating very little	Significant dehydration	Go to the ER
Severe shortness of breath at rest, chest pain, or blue lips	Possible pneumonia or respiratory failure	Go to the ER or call 911
Confusion, fainting, or difficulty staying awake	Possible severe illness or low oxygen	Go to the ER or call 911
Noticeably reduced fetal movement for several hours (third trimester)	Potential fetal distress	Go to the ER or L&D immediately
Symptoms improve, then worsen again	Possible secondary bacterial infection	Same-day urgent evaluation

This table is a guide, not a substitute for clinical judgment. If you're ever unsure, it's always appropriate to call your provider or go to the ER.

Keep your prenatal records and emergency contacts somewhere easy to grab during flu season.

FAQs

Can the flu harm my baby during pregnancy?

Yes. During pregnancy, the flu can increase the risk of serious problems for the mother, including pneumonia. It’s also linked to a higher risk of preterm birth and stillbirth.

Getting a flu vaccine during pregnancy can help protect your baby, too. That protection can last for up to six months after birth, which matters because infants usually can’t get their own flu shot until around that time.

Should my partner and family get the flu shot too?

Yes. When your partner and other family members get the flu shot, it creates a protective buffer around you and can lower your exposure to the virus during pregnancy.

It also helps protect your baby. Newborns are too young to get their own flu vaccine, so protection at home matters a lot. Getting vaccinated early in the season gives your household the best protection.

How can I tell flu symptoms from normal pregnancy discomfort?

It can be tough to spot the difference on your own, but you don't have to guess. Remote monitoring tools and AI-powered platforms can track your usual health baseline and vital signs, then flag changes that may point to illness.

If you notice unusual patterns or symptoms that stick around, share those readings when you contact your healthcare provider. And if something feels off, reach out to your doctor.