Wanting to be a surrogate.. Questions

Currently I am only 20 and our laws state you have to be 21. However, I was thinking of becoming a surrogate for mothers who cannot hold or conceive their own child. However, is that a bad look for me to be so young and constantly pregnant because I would like to be a surrogate?
I already have one child and I am pregnant with my second. Once I turn 21, I plan on doing more research. 
However I feel like I will get a bunch of judgment being so young and constantly pregnant since I want to help a lot of families, IF I can..