My best friend used our baby name. What to do?

Emily

A really good friend of mine and I are about 3 weeks apart with our first babies. She lives 6+ hrs away from us and we see her about once a year or so. She had her baby last night and we never shared names (ever) and she shared the name and my heart sunk. It's the name I've been wanting to name my girl (if it's a girl because the gender is a surprise). Do I keep the name considering we don't see each other that often or is it faux pas?

I'm really sad and heart broken because I love the first name and middle name combo we came up with. PLEASE HELP! I'm due in 5 weeks.