Constant not sig. in multiple regression - does it matter?

I did a hierarchical multiple linear regression in SPSS with three predictor variables. All the variables have high F-values and are highly significant at each step of the model, but the constant is not significant (0.079) in the last step. Should I disregard all the results just because of that? Does it matter if the constant is not significant (I honestly don't really know what the constant is)?

Thank you