Enjoy the birthday celebration for your little boy and try to fit in some other enjoyable things before Chemo starts. I actually went and had a pamper morning 2 days before Chemo started. It helped to keep me calm and positive about what was to come.
Depending on what Chemo you are having, it is not going to be all bad for 12 weeks. I have just finished Chemo, and while there were some unpleasant days, all up it was not as bad as I thought it was going to be. The biggest effect for me at the end now is lack of energy. But I'll get there and you will too! Oh, and I can't wait to get some hair back, although it is cooler with the warm weather starting!
Just take it one step at a time and know that the chemo is just insurance against any stray cells that may have got away. Make the most of the good times. You will find the 12 weeks will go fast, my 18 weeks did! Soon it will all be behind you and you can get on with life with a new appreciation of how precious it is!
Come and blog any questions you have about issues as you go along. You will find a lot of practical advice from those who have been through this too.
Wishing you all the best. Take care.
Deanne xx