Ear infections during pregnancy

By trimester

Weeks 1–13

1st trimester

Ear pain this early is usually tied to a cold rather than to pregnancy itself, since the hormone-driven swelling builds slowly. Warmth on the outside of the ear and gentle swallowing or yawning are reasonable first steps. Call your provider before starting any medicine, since the first trimester is when the fewest options are on the table.

Weeks 14–27

2nd trimester

Congestion picks up now, and with it the plugged, muffled feeling that can mimic an infection. Pain that builds over a day or two, especially with a fever, is worth a look rather than a wait. Your provider can check the eardrum in a few seconds and tell you which of the two you are dealing with.

Weeks 28–birth

3rd trimester

Nearly 7 in 10 women report ear fullness by the third trimester, so the odds that a blocked feeling is just pregnancy swelling are high. Actual pain is the dividing line. Fullness on its own tends to ease once hormone levels settle after delivery. Sharp pain, fluid draining from the ear, or muffled hearing in one ear only deserves a same-day call.

What does the evidence show for ear infections?

• Middle ear infections start either with bacteria like Streptococcus pneumoniae and Haemophilus influenzae or with the same viruses behind a cold, and many get better without antibiotics. 1
• Ear fullness is close to routine late in pregnancy: 68 percent of women studied in the third trimester reported it, and the feeling tracked with how far along they were. 2
• Ear pain, fever, and trouble sleeping are the signs listed for a middle ear infection, and a clinician is the one who can sort out whether antibiotics are warranted. 1
• Amoxicillin has a reassuring pregnancy record: most studies have not found a higher chance of birth defects when amoxicillin or clavulanic acid is taken in the first trimester. 3
• Acetaminophen used at recommended doses has not been shown to raise the chance of birth defects, which is why it is the pain option with the most pregnancy data behind it. 4
• Severe ear pain that does not respond to over-the-counter pain relief, discharge from the ear, or swelling and tenderness over the bone behind the ear are signs of a possible complication needing prompt evaluation, and moderate to severe cases typically involve intense pain along with fever. 5

When should I call my provider about ear infections?

Call your provider the same day for ear pain that is severe or does not ease with over-the-counter pain relief, fluid or pus draining from the ear, or swelling and tenderness over the bone behind your ear, which can point to the infection spreading beyond the middle ear. A fever alongside intense ear pain is also a same-day call rather than a wait-and-see. Pain or fever that hasn't improved within 48 to 72 hours of whatever your provider recommends is worth a follow-up call too. New hearing loss that does not lift on its own is worth mentioning at your next visit. If you are ever unsure which side of the line you are on, make the call. Obstetric teams handle these check-ins as routine, not as overreacting.