Okay soo.... I need some advice

Alright ladies, I’m in a relationship my boyfriend isn’t Christian but I am so my beliefs with being in a relationship is no sex until marriage. Not even head or master bating BUTT here’s the interesting part, I want to have sex with my bf. I told him my “boundaries” of no sex or nothing that leads to or no provoking anything sexual, but last night (btw I’m ovulating and my hormones are everywhere) I ended up getting soo honest and sexual with him and tbh he said he enjoyed seeing me like that but I feel so ashamed and embarrassed.