RAW seggs

My boyfriend and i use condoms for contraception together with the calendar method and pull out method combined. We only do it during my luteal phase when there is no egg available, and then we pull out as he is finishing even if we wear a condom

He suggested that next cycle on the last day of my luteal phase we could do it raw? Since my period will arrive.

Is this safe? We want to know what are the chances of pregnancy this way? Since we are avoiding it