I had this problem, i found that there were a couple of vibrators that got me used to having orgasm at the same time as deep penetration, the rampant rabbit thruster and the glitterati vibrator with a clitoral one, i found that after a while, couple months, i was able to orgasm without the clitoris being stimulated, hopefully this helps, it can be really embarrasing when this is the case. Hopefully ure partner understands, also if u stimulate the clitoris for a relatively long period before sex this often helps.
there are creams that you can apply to the clitoris that enhance pleasure , i work for a uk based company and we sell them ! we also sell books that can help your hb to improve his teqnique too . not sure of world wode products though but im sure you can get them anywhere ! good luck x x