Baby name problem

Need some advice... my best friend and I are both pregnant for the first time, 5 weeks apart (she's due first). Her and her partner have found out they are having a girl but we have decided not to find out. We have decided on a boy and girl name but aren't telling anyone.

On the weekend while out with a group of friends, my friend announced what they are probably going to name their baby girl - and it's the same name we decided on :( what are the chances?!

I kept silent at the time but I'm so confused what to do. Should I talk to her? We are so set on our name if it's a girl but don't want it to seem like we are stealing their idea?!

Help!!