Orgasm

So my boyfriend and I had sex today and I kept feeling an intense pressure that was a hurt/feels good feeling. I kept making him stop or trying to run away 💀 cause it was soo overwhelming and like intense (it’s hard to explain 😭). But I’ve never orgasmed before, so my question is was I close to orgasming ? Or like is that feeling normal ? Can someone please just help and explain lmaoo