Ashe is a fictional character in League of Legends. She is a champion with a distinct backstory and relationships within the lore. While she does have romantic relationships with other champions, there is no indication of a romantic relationship or pregnancy with Zac.
Zac is a champion in League of Legends known for his unique abilities and fluid form. He is not typically portrayed as a romantic character or someone involved in romantic relationships.
It's important to separate fictional narratives from real-life concepts and avoid spreading misinformation or speculation about fictional characters' personal lives.