2months pp

I live with my parents so if I need a break from my LO they hold her for me. My mom was on her cycle and LO didn’t want her holding her whatsoever she wasn’t having it at all. But now mom isn’t on so it’s a whole lot better. Now my cycle is on and LO is super fussy and really doesn’t want me to hold her. I’ve heard all the myths & don’t believe in them (but looks like I should start)(but I thought it was for other women only not the mother) and Ik it has to be why baby is fussy bc I gave her to mom and she stopped crying. I’m confused has this happened to anyone else? What to do?