Headaches During Pregnancy
The short answer
Headaches are common during pregnancy, especially in the first and third trimesters. They are often caused by hormonal changes, increased blood volume, stress, fatigue, caffeine withdrawal, or dehydration. Most pregnancy headaches are tension-type and harmless, but severe or persistent headaches, especially in the third trimester, should be evaluated to rule out preeclampsia.
Parents everywhere have the same worry. You are doing the right thing by looking into it.
By Age
What to expect by age
Headaches are common in the first trimester due to surging hormones, increased blood volume, and caffeine reduction. Rest, hydration, cool compresses, and acetaminophen (Tylenol) at your provider's recommended dose are generally safe. Avoid ibuprofen (Advil/Motrin) and aspirin unless specifically prescribed by your provider.
Many people find headaches improve in the second trimester as hormones stabilize. If headaches persist, try maintaining regular sleep, eating frequent small meals, staying hydrated, and managing stress. If you need medication, acetaminophen remains the safest option.
New-onset headaches in the third trimester or headaches that are different from your usual pattern should always be reported to your provider. Severe, persistent headache that does not respond to acetaminophen, rest, and hydration can be a warning sign of preeclampsia, especially if accompanied by visual changes, upper abdominal pain, or swelling.
What Should You Do?
When to take action
- Mild to moderate tension-type headache that responds to rest, hydration, or acetaminophen
- Headaches related to fatigue, hunger, stress, or caffeine changes
- Headaches similar to ones you experienced before pregnancy
- Headaches that occur in the first trimester and improve in the second
- Frequent headaches that are not responsive to safe home treatments
- Headaches that are interfering with work or daily activities
- A change in headache pattern or new type of headache during pregnancy
- Sudden severe headache, the worst headache of your life, or a headache different from any you have had before
- Headache accompanied by vision changes, seeing spots, severe swelling, or upper abdominal pain - these are potential signs of preeclampsia
- Headache with fever, stiff neck, confusion, or seizures
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
Worrying about your baby means you care. That is a good thing.
Related Maternal Concerns
Migraines During Pregnancy
Migraines affect about 25% of women of reproductive age. Many people with migraines find they improve during pregnancy, especially in the second and third trimesters, due to stable estrogen levels. However, some experience worsening or new-onset migraines. Management during pregnancy requires careful medication selection under your provider's guidance.
Preeclampsia Warning Signs
Preeclampsia is a pregnancy complication characterized by high blood pressure and signs of organ damage, usually after 20 weeks of pregnancy. It affects about 5-8% of pregnancies and can range from mild to severe. With regular prenatal monitoring, preeclampsia can be detected early and managed to protect both you and your baby.
Dealing with Abnormal Prenatal Screening Results
An abnormal prenatal screening result can be terrifying, but it is important to understand that screening tests are designed to cast a wide net and have significant false-positive rates. Most people with abnormal screening results go on to have healthy babies after further testing confirms the baby is fine. An abnormal screening is a reason for more information, not a diagnosis.
Pregnancy Over 35 (Advanced Maternal Age)
While pregnancy after 35 carries some increased risks (including chromosomal abnormalities, gestational diabetes, and hypertension), the vast majority of people over 35 have healthy pregnancies and healthy babies. The term "geriatric pregnancy" is outdated and does not reflect reality. With appropriate prenatal care and monitoring, outcomes are excellent.
Amniocentesis Questions and Fears
Amniocentesis is a diagnostic test performed between 15-20 weeks that analyzes amniotic fluid to detect chromosomal conditions and genetic disorders with over 99% accuracy. The risk of pregnancy loss from the procedure is approximately 1 in 500-1,000 when performed by an experienced provider. Understanding the actual risks can help you make an informed decision.
20-Week Anatomy Scan Unexpected Findings
The 20-week anatomy scan checks your baby's major organs, structures, and growth. Most scans are completely normal. When unexpected findings are identified, they range from minor variants that resolve on their own to conditions that need further evaluation. Many findings require nothing more than a follow-up ultrasound to confirm the baby is developing well.