why cant i have an orgasm from sex??

ok this may be too much info but i really need some input.

i lost my virginity when i was 15 years old, im now 19. and i can only have an orgasm from masterbation and on the rare occasion oral, but im not a big fan of oral so. ive been with my current boyfriend for 7 months and we are sexually active, the sex is amazing and it feels so good but for some reason i just cant climax. like i feel like im going to, but i cant.

recently we were having sex and it was getting pretty hot and he had to pull out, i felt like i was going to cum so i kept telling him to keep going and as he was pulling out im not sure if he hit my g spot but my body went nuts. my legs were shaking and everything down there was wet. im not sure if it was his cum or if i had squirt but that has never happened before.

i can have an orgasm from clitoral stimulation no problem but it seems whenever im having sex theres like a mental block. and its not lack of attraction or anything, my boyfriend turns me on lol.

any advice?? should i maybe look into getting a vibrating bullet?