Fifty shades

My fiancé and I have two TVs in the lounge and he was playing his PlayStation so I put on a movie (fifty shades of grey) as I was watching I noticed he kept looking at the sex scenes then looking at me. I didn't say anything because whatever right but then he asks me what are you watching and I told him and he asks would you ever do that ? And I said what.. he replied be a sex slave.. I jokingly said I would with you and he got super serious asking me to look online and pick out bondage stuff.. I kept asking over and over are you being serious or joking as I was looking and he said he was dead serious so he grabbed my phone and started looking himself.. he picked these 4 handcuffs thing that like ties you up and a gag, buttplug, vibrator bullet, dildo , lube, whip and lingerie.. I'm kind of excited but scared because I've never done any like this before and neither has he.. my question is .. is this safe to do after losing my baby two months ago because it's rough and stuff? We will have a safe word but still..