Hi ML, although I have not started on the program, I can understand your yoyoing back and forth feeling as I was during the last year, I had that yoyoing feeling of lost. If you feel very tired, take a short break before next cycle. Don't worry too much about the cancer issue. Spoke to some drs and their view is that people get cancer whether or not they do ivf. For ivf patients, we should go back for checkups regularly and any problem can be found out easily and cured. For others who don't do ivf or have no family history, they often get complacent and when its found out, its later phase. You get what I mean. There is no black & white when it comes to such things. Jia you. Don't be disheartened.