Old wife tales...

Has anyone gone through this...
So I am about to be 12 weeks pregnant and my 1 year old niece usually will let me carry her and be around me but now she can't stand just the fact of looking at me 😂😂. This morning I had a customer who had a 1 year old little boy and I have never met him and he was beyond attached to me wanting me to carry him and he was just so attached. The mom was in shock she said he never gets even close to strangers or people he simply does not know. 
Both told me I must be having a girl 🎀 but I don't know what I'm having as of yet. 
My question is you know that midwife tail you're having a boy If little boys don't want to be near you and little girls want you and vice versa. 
Has this happened to anyone and it actually be true?