Am I making the right decision?

In 2006, I had Stage 1 breast cancer in my right breast.  Because there was actually two spots, I had to have a mastectomy.  After going back and forth, I chose to have a unilateral one.  I have regretted it ever since -- I should have done both.  Since then, I've had mammogram call backs, biopsies and all the anxiety that goes along with it.  This last biopsy came back as atypia.  The surgeon wants to remove this along with the other areas that were biopsied in the past.  Basically 3 lumpectomies.  I am seriously considering a prophylatic mastectomy on my left.  I think it's a decision that I will feel comfortable with, and my surgeon seems to agree.  Part of my trouble is my family vacation -- we have scheduled a trip to Disney with our DD (10 & 5) at the end of September.  The surgeon doesn't want to wait until I return from there to perform this surgery, so if I have it, it has to be done soon.  I remember from the last mastectomy that I felt good afterwards, especially once the drain was removed.  Do you think that I'll be healed enough to go and enjoy Disney estimating 6 weeks recovery time?