Domain mapping and https not working everywhere on site

I have added an ssl certificate to my domain today.

I setup the https wordpress plugin recommended on this forum (I have been reading other members issues with this) and when logging into an account the https is fine, however as a site it is not showing.

It is the same on all the sites on my multisite. For example when you go to login at wp-admin the https shows up but I want the whole site to be https://

Is there something I need to do for the https:// to be the default throughout.