My mother, step father and younger brother attended my wedding. My father and other brother did not reply to the wedding invitation. My sister was unable to attend due to timing/work and other obligations but was very sweet to have sent a card and present. The wedding was outside at a country club and completely non-religious (our choice - not to please anyone else in doing it this way)
My boss, who was more like a dad to me, walked me down the isle - which was very special. Hopefully you will be able to think of someone else who could walk you down the isle, or you could walk down with your partner or on your own....lots of different ways it's done now. Our wedding was attended by my husbands family and many dear friends.
At first I was disappointed/upset that people are unable or unwilling to attend but then I decided to focus on what the day was really about and to and celebrate with those people that were able to attend and wanted to be there. The day could not have been more perfect!
So much can change from the time one dreams of there wedding, to being engaged, to the actual wedding date... it is quite a ride but enjoy it when your time comes and hopefully it will still be a dream come true for you.