How can I achieve ?

I have been married for two years and have a daughter but i can not reach . When he gives me i come close, i mean it feels great, but then i build up and it reaches a point where it almost hurts and then i have to have him stop. I don't know what to do cuz its coming between us. I have never had an , and cant even get the building up during , but what i'm asking is how can i get over that peak even if its just orally.