How do I get my SO to orgasm?

I've been in my relationship for years 5+ and I can't get her to orgasm with penetration... At this point now that we're officially trying to conceive, and I feel like if she can orgasm during sex it would increases our chances, but I'm not expert by no means... Also from the rated r perspective, I don't have a lot of experience with sex since I've only been with one person. I also average maybe 10 minutes and then I explode, sometimes I can bounce back others times I'm out for the count... 
She can orgasm on her own with porn via clitorial stimulation and I'm all for it, I would just love to be able for us to get there together ESPECIALLY now that we're having sex more often...
So any advice, suggestions, comments?