how to tell family you can't go because of zika (but keep the supprise)

[qwertt12]

my family have booked to go away but we are going to start trying to conceive but i want the to be excited when we tell them not have to tell them that we are trying

any suggestions on what we could say ?

Work. You've already planned a holiday. You just don't want to go.

@GingerRH

thanks for your suggestions x