Should I remove my healthy breast after second breast cancer diagnosis?

I have HER II positive breast cancer with a 2mm invasive ductal carcinoma tumor, and DCIS. I wanted a bi-lateral mastectomy but it kept being rescheduled because of surgeon and plastic surgeon's schedule. I wanted the cancer out of me asap so I had a lumpectomy with plans for a bilateral later. I also had a port put in during surgery. They took 2 lymph nodes. I am waiting pathology reports to see if the cancer spread to the lymph nodes. Currently, the plan is to allow me to heal, start chemotherapy and then have a bi-lateral sometme later. This is my second bout of breast cancer - the same breast but different. My first was HER II negative hormone receptors. I was on anastrozole for 5 years. This cancer appeared 9 years after it's different. I had radiation but no chemo. What I would like comments on is whether I should have my good breast removed. I am 67 years old unbelieve I have a lot of life left to live. I would want reconstruction and I'm just looking for opinions and similar experiences. Thank you