Is it normal to not like sex?

So ever since I first learnt about sex when i was 9 or 10 to now, I have always been disgusted by it. When i was I child it was a mix of fear and just general non understanding of why someone would do it. As I reached my teenage years I developed crushes, but even when in relationships I didn't want sex. I never understood this obsession with porn that all my friends had to me it just seemed boring and gross.

The first time I had sex was a mix of emotions, physically it was enjoyable, but i didn't feel turned on in anyway by the girl, I liked dating her, but I didn't want to fuck her. After running in to this problem a few times I assumed I was gay despite never being attracted in any way to guys. This by the way was in my first year of university, so it wasn't too hard to find gay guys, but dating guys was definitely not for me. I realised almost straight away after trying to date guys that I hated it, since I wasn't attracted to guys in anyway.

By this point I knew i wasn't gay, so went back to dating girls, but I still felt nothing sexually towards them, despite liking girls romantically. So i decided to avoid sex as much as possible, which is hard to do when dating girls, especially since I had no real reason to do so. I feel so out of place right now and have no understanding of why i don't want to have sex or watch porn. I grew up in a sex positive household and enjoy the physical feeling of sex, but the idea of having sex makes me want to throw up. Does anyone else feel this way?