My Papp-a also came back low so i did an amnio and all was fine as well. I think it is extremely important to monitor my baby though b/c low Papp-a may also be a sign of other issues, such as preeclampsia or premature labor later on. I'm definitely not taking any risks and I'm seeing a fetal specialist in addition to my dr to make sure it's all ok. U/s have been performed for decades and are perfectly safe for the baby. I've had numerous u/s already and I love watching my baby grow! :)
Thanks so much for the responses.
I know that u/s use sound waves. This didn't bother me at the beginning but now that I know my baby can hear...Well I think it's gotta be really loud and scary for the baby. I know people get them all the time. I'm just feeling bad, oh God, mom guilt already?! :)
Ultrasounds don't affect the baby :)
I'm not sure about the other things but u/s don't hurt. I've had an u/s every week since I was 25wks, I'm 38wks now.