am I being stupid for being annoyed... (having a vent)

Laura 🇦🇺 • 🤰🏼pregnant with our first! 👶🏻 due August 17th!!

Found out today our first child is going to be a little girl!!!!

So at the gender scan we were allowed a few people there, originally I was going to have my mum, my twin sister, my older sister, his sister and his mum.

But a few days ago I changed my mind and just wanted it to be me and my partner... so I uninvited everyone, my side of the family were totally cool about not coming, his not so much..

I didn’t tell anyone except for my partner last night but I really wanted MY TWIN sister at the gender scan, he’s was fine with that. So she came to the scan with us this afternoon

So after the scan before we even had a chance to tell any one because we had just gotten to my mums to tell her

his SISTER called and before she even let us announce it to her she just goes ‘who was at the scan?(he replied me, laura and her sister) and she was all like wtf why did she get to go and I didn’t I’m upset and annoyed, I just felt like taking his phone and hanging up on her!!!

I’m really upset that she is having a winge about it! I know it’s his sister but she is my TWIN sister and we came into

This world together I wanted her to share this moment with me...

His sister is currently Pregnant with her third so it’s not like she’s never experienced a gender scan before

Sorry for the long vent!!

Any ideas on how to approach this situation when I see her next??