? for stage 1, hormone +, her2- sisters on chemo

I am Stage 1 and on chemo.  I started 2 weeks ago. You can see my stats below.  My oncotype came back at 17 which is the highest score in the low range.  I had hoped it would be much lower so I could just turn my back on chemo, but it was not.  My doc's said if the score was low, no chemo but if it came back in the mid range it would become a choice.  I got two opinions.  The first one said no chemo based on the oncotype.  The second opinion felt there was potential benefit to me.  The thing that made me choose chemo was that I had angiolymphatic invasion listed as present on my pathology report.  This means the cancer had a pathway to travel by blood even though my lymph nodes were clear.  I was also upgraded from Grade 1 to Grade 2 after my lumpectomy.  Eventhough I ended up doing a BLMX I was still worried about the angiolymphatic invasion.  I have a 4 year old son and I want to do everything I can to blast the cancer now.  I don't want to do this again and I hope by doing it now I will get anything floating out there.  I don't know if it was the right thing or not but I do know that I can live with my decision knowing I did everything I could.  I knew that I would never be OK with skipping chemo if my cancer came back down the road.  I would blame myself.  My compromise was keeping my hair duing chemo.  My doctor is a supporter of the cold caps and I am doing them to keep my hair through chemo.  I will know this next week if it works for me.  It was not as bad as I thought it would be at all...it was very tolerable for me so doing it three more times on my next chemos won't be a big deal.  So I have a total of 4 rounds of chemo over 9 weeks and at the end of that I hope to have my hair and just close the door on cancer.  This is a hard decision.  I agonized over the chemo debate for weeks and it caused me the most stress of the entire BC process.  Once I made the decision it was like a sigh of relief for me.  I was scared to start but once getting started it's OK.  I tolerated the first round OK with a few minor side effects, but all is normal now.  I get my son up for school every morning, run errands, workout daily and cook dinner for my family just like I always did.  It's only 9 weeks...that's what I keep telling myself.  Now I only have 7 weeks left! Good luck with your decision.  I know how hard it is.