If it were me, I would research. Then I would do whatever was in my power to try and help my baby and make sure i do whatever i think is in the baby's best interest. If it were me, (since i will most definitely be high risk when if i'm able to have kids) i would get the shots. If there was even the most remote chance it could help save my child from some of the complications of being born early such as inadequate lung development- it's worth it in my book..