...they also put their two cents worth in in regards of how to raise a baby etc but at the end of the day it's my child, my family, my body etc and I will make the decisions.
Let them have their 2cents worth. They can say all they want... at the end of the day, it's you that puts things into practice! I'm 24 and had everyones suggestions start when I was pg. (like my sister, who rang me at 5wk pg to talk about whether I was using cloth or disposable!)

Gather any and all information you can on whats concerning you and you can make an informed decision, so if anyone objects you have backup.

Good luck ! HTH