Hard decision

Today I have to decide whether to continue my last 2 rounds of chemo, I've done 3 FEC and 1 Docetaxel. My first round of D I ended up in hospital for pain management which did settle down eventually once I was on the right meds and passage of time. The following week I starting getting pain in my upper abdomen which turns out to be gallstones, I was in hospital for 5 days on iv antibiotics and fluids to get the inflammation down. I will need to have my gallbladder removed as the stones are large and wedged in the duct. I have surgery booked in January as my margins were not quite clear from lumpectomy and auxilla clearance on 5/8/13. This is a small procedure. I just feel at this stage that the chemo is doing me more harm than good. I need 2 surgeries in the next 2 months followed by 6 weeks of radiation therapy. If I decide not to do chemo my oncologist wants me to have a monthly injection to stop my ovaries working which will throw me into early menopause, I'm 39, for 18 months. Has anyone out there not finished chemo? If we are talking numbers, if I don't finish the last 2 rounds of chemo the difference is 3% for reoccurance as apposed to 64% if I chose not to do it at all. If I finish all 6 rounds then it's 85% as opposed to 82% which is where I'm at now. I just want to make the right decision for my health and long term health so I can be there for my boys.