What an awkward situation Percy.

You could try saying this to her;

"XXX, thank you very much for your advice, but I have done a lot of research into the choices I have available to me and i choose to follow this path"

Maybe she is at you like this because she is a little bit jealous? Did she have a c/s and then FF? Or maybe it is because she didn't do the research you have and just doesn't know there are other excellent choices to be had?

Either way, good luck Percy.