Family cosleeping

I am on business trip and I’ve been gone since Thursday. My mom is watching my toddler(19 months) since I’m a single mom. Well my sister is there also helping her and my sister just told me that that have been cosleeping with my son. I have NEVER coslept. It’s something I’ve voiced I never wanted to happen because the hospital literally terrified me about cosleeping when I had him. I get back tomorrow and worried that he isn’t going to want to sleep in his crib. Is this something I should be worried about or am I just overthinking?