Hello Nikki72 and welcome to the forum.  I have no information about invasive ductal cancer myself but I hope you will find that others who have (or had) will make contact with you.  In the meantime you could look up posts that others have made before you.  In the blue banner above your post click on the words Search Forum then in the box which opens up type the words invasive ductal cancer.  You will find that a list of previous posts which mention this will show up.  Some are a few years old; others are more recent; just click on the ones that look as though they may be of interest to you; if you wish you can reply to one or more of the posts.  Best wishes to you.  Annie