and welcome. I would agree with Rowan said, because it is true that some people dont enjoy penertation so much. But do you like other forms of sex and also closeness to the partner? If you do, then it would depend on the 2 of you on how to approach this and how can make sex enjoyable for you.
But I am wondering, is there any specific reason why you dont enjoy it? Is it painful? This can be because of several reasons, including some physical issues, dryness (can be helped by using lube) or you tensing. Or is it because you just do not enjoy it? And it gives you little pleasure? In this case you can try to add some stimulation to the penertation, either being it fingering, or a sex toy such as vibrating cock ring or small bullet to stimulate you.
In both cases you can also try to focus on alternative if you like them more, but you would have to talk about this to your partner.
The third option which came to me is some sort of psychical block be it either against sex (please dont take offence, some bad experience in the past can do that or also the way people round us view sex, it does not mean anything is wrong with you) or some really bad experience from the past. In this case it could be helpful to see a professional.
But for what ever reason, even if you are just not really that much into sex at all, it does not mean there is anything wrong with you, everyone is different. I would only say it is best to know why this happened and be able to communicate this to your partner.