Hi Tammy! Sorry you are having to go through this, but we'll help you where we can. I was diagnosed a week before I turned 31, and that was over 5 years ago. I also had invasive (infiltrating) ductal carcinoma. It is the most common, means it originated in the ducts of the breast. Mine was also grade III which means it has potential to be more aggressive, but one thing you will learn is stats are just stats...nothing is a guarantee. My tumor was 2.5 cm, I did a lumpectomy, chemo and rads. You may need some help with the kids, but with any luck, you will breeze through treatments....I was able to work full time and take care of all my needs during treatment, so there is no guarantee that you'll be sick or laid up.
My advice is to read and learn what you can, for me, knowledge was power. It was the only thing I could do at first to take control. Take a buddy and tape recorder to your first appointments and consider a 2nd opinion...there usually not a need to rush into things without being sure of your plan.
Ask us whatever you need to, we're all ages and stages of BC and we have been in your shoes. Hang in there, you will surprise yourself with your strength.