January 23, 2026
Flu Shots & Vaccines for Women TTC or Pregnant
Pregnant women and those trying to conceive should get the flu vaccine to reduce risks. The injectable flu shot is safe at any pregnancy stage, while intranasal vaccines are not recommended. Vaccines like MMR and varicella require preconception administration, and thimerosol in vaccines poses no harm.
Key Takeaways
Flu Shot Safety for Women Trying to Conceive or Pregnant
The injectable flu vaccine (inactivated virus) is safe during pregnancy and while trying to conceive. Avoid the intranasal flu vaccine (live attenuated virus), which is contraindicated for pregnant women.
Thimerosol in Vaccines: Debunking Pregnancy Myths
Thimerosol, a vaccine preservative once feared for harm, has no proven risks for pregnant women or their offspring. Modern evidence confirms its safety during pregnancy and preconception.
Vaccines to Avoid During Pregnancy: MMR, Varicella, Herpes Zoster
Live attenuated vaccines like MMR, varicella, and herpes zoster should be administered at least one month before conception. Pregnancy must be avoided for one month after the final dose of these vaccines.
Preconception Vaccination Checklist for a Healthy Pregnancy
Review immunization status with a healthcare provider before conception. Key vaccines include hepatitis A/B, Td, and meningococcus, as recommended by the CDC.
How Maternal Vaccines Protect Newborns from Infections
Maternal vaccinations during pregnancy transfer passive immunity to newborns, reducing their risk of infections like influenza. Preconception immunizations also enhance uterine infection resistance.
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