Body confidence problems

I am highly scared about what guys think to my body and I've got with a new guy nd I want to have sex with him but I never have had it before because I just don't know what anyone will say to my body. I feel crap about it like my body is disgusting etc... but I know when you are supposed to love someone your body to them and how it looks won't matter but it does.

I kinda don't know what to do about how to approach my boyfriend about this situation can anyone help and does sex hurt for your first time because that's what I'm worried about 😦😦😦😦