Name stealing!!!!

First off I am not pregnant, my husband and I have been ttc for 8 months now and that in itself has been really stressful. So years ago I shared with my family that one day I was going to name my daughter Emma? in 2012 I found out I was pregnant and again I shared with my family if it's a girl it will be Emma & if it's a boy it will be mason? I delivered a beautiful baby boy. This summer my aunt who I'm close to found out she was pregnant with a girl everyone was happy, so kinda jokingly I told her just don't use my name Emma, she showed no interest so moving on to yesterday she tells everyone that she really wants to name the baby Emma. It really broke my heart, also she saids well your not pregnant & you might have another boy, I was so mad & broken hearted, ladies please help am I over reacting or is she in the wrong??? I regret sharing that name with her