Answer:
First, please be honest with your boyfriend. He is under the impression that he is able to make his girlfriend cum. I’m pretty sure that he feels really good about that. Now, how do you think he will feel when he learns that he can’t make you cum at all? You must inform him now, don’t stall it. If you don’t tell him now, you won’t be able to tell him at all in the future. The faster you tell him, the better. Communication is very important in a relationship and together, you can work on achieving that orgasm. Also, I think you focus to much on getting that orgasm during sex. Honey, sex isn’t all about achieving that climax. It’s more than that.
Anyways, that aside, I will provide you with some tips on how to orgasm. But, this all includes cooperation from your boyfriend, so talk to him first before getting into any of this.
Girls in general might find it difficult to orgasm by penetration. Solutions to this are among other changing your position. Doggy style for example is a good position for a girl to orgasm. The angel is great, with every penetration, the G-spot gets stimulated. G-spot stimulation is an excellent way to get an orgasm. Also, in this position you you the freedom to rub your clit, for extra stimulation. Or your boyfriend could stimulate your clitoris instead of you. Another way is to prolong foreplay. Make it long and intense. The more stimulated you are before actual sex, the better you will feel during it. You have to be very relaxed, and worrying about getting that orgasm won’t help that. So try to not always work to that orgasm. Try to enjoy sex fully first.
I hope this could help you :)