Need opinions!!

Im 20 and im trying to tell my grandparents that im pregnant. It really doesn’t help that they live 2 whole states away and I have absolutely no clue on how to tell them due to the fact that they are super old school and SUPER religious 🤦🏼‍♀️. I just have no clue how theyd take it especially since me and babydaddy are no longer together 😅. Any advice or opinions on how i should tell them??