Looking at Egypt and Canaries at the moment. Morocco is a no because we have been before and I had the runs the whole time and this time I'm pregnant and don't want to risk it! 
We have a 3yo and would love a water park type holiday - I'm due end of May so this is our last chance for a while. Last week in March I'll be 28wks, I don't think I'll be comfortable travelling after that.