CANT FEEL SEX

I just recently started having sex. I lost my virginity to this guy and since then we have had sex two times the thing is I feel absolutely nothing during sex. I can feel the movement of the penis but I don't get any pleasure from it, even if I am really aroused. He’s not small and we do foreplay and everything. I’m able to get wet it’s just when he puts it in I feel nothing. I haven't came across any solutions. Is there a reason this is happening and is there anything i can do to make sex feel good? Only time I’ve been able to make myself orgasm is when I’m masturbating through clitoral stimulation using a vibrator. The whole thing is very frustrating and confusing. Is there a specific way to fix this?