Same baby name picked out as other family member

I’m in need of some advice. My brother and sister-in-law are due with their first baby 10 days before my husband and I are due with our second. I just found out on Sunday that their girl name is the exact same name that my husband and I chose. Even the same middle name. They are not finding out what they’re having until the baby is born and we just found out today that we’re having a girl. I don’t know what I should do if I should just talk to them and tell since we know we’re having a girl we’re going to use that name. Or do we try to find a different name even though that’s the name we love and we really don’t feel that strongly about any other names? And if we changed our name they could end up having a boy but we won’t know until the baby gets here. What would you do? Any advice? It’s just kind of a stressful situation.