When is winx club going to be pregnant?

As of now, there are no official announcements or plans for the Winx Club characters to become pregnant in any upcoming series or adaptations. The focus of the franchise has primarily been on themes of friendship, adventure, and self-discovery. Any developments regarding the characters' personal lives would be up to the creators and writers of the series. Therefore, it's best to keep an eye on official news from the creators for any future storylines.