First time having sex

So me and my partner have been dating for just over 4 years. On Friday, I felt ready to go all the way and let him in. (This wasn’t with condoms). So we kissed and stuff and finally he was inside me and it just felt so weird. I’m used to his fingers normally so it was weird in a nice way in that it wasn’t so hard and scratchy lol. Anyway, we got to that point, and it did feel nice, and since his level of respect for me is that high he let me take the lead, and so it was probably only a minute or so until I had an orgasm (yeah I know, a bit short lol), and then I panicked and pulled off. It just freaked me out a bit I think to actually do it for the first time. He wasnt phased by any of this he was just happy and content to even go that far, and hes never pushed me towards doing anything. And then all day yesterday and today all I could think about was just doing it and having a great time. So of course I’ve worked myself up got myself horny and tonight we did it. Like for a good amount of time before he had to pull out. And it felt real good. And I did orgasm and it was good. The only thing is I just cant stop feeling anxious. It was great, and we love and respect each other, so there’s no issues anywhere. Im just so anxious. My mum has always said no sex before marriage and I went against that. And I love my mum. So maybe its partly that. And maybe partly because i used to believe that too, until id had enough of wanting it so bad and messing about with other ways to “get off” and it was more a case of well we love each other sort of thing. I don’t want kids either so condomless is stupid i know but for me for my first time i wanted to feel him inside properly if you get my jist. Just would like advice to stop being so anxious about it and just enjoy it for what it is. Making love.