How do we tell our best friends?

Hey all, so my husband and I just recently learned we are pregnant after only 3 months of trying (very excited and very blessed). We are keeping it quiet until we have the good to go/confirmation from the Dr (first appt. May 13th). Once we get the hopefully all is good we have a few people we want to tell before making it public knowledge, 2 of those people being our best friends who have been ttc for a year with no bfp. Can y’all give any advise as to how to tell them with as little hurt as possible to them? They are truly amazing people who will be over the moon happy for us but I’m feeling a bit guilty (if that’s the right word) it happened so quickly for us when they have been trying for longer.