Vaccinations

Lisa • 36 years old, first time mom after 7 years ttc, baby boy Colton born Aug. 23rd 👶. Lost 2nd baby at 7 weeks.
I am still doing my research on vaccines. My brother's daughter had a severe reaction to vaccine and was hospitalized as infant. He says to not get vaccines while pregnant or take any medications. 
Others thoughts on this, please no rude comments.