Want to know a secret about giving orgasms? We don't know what flips another woman's switch. We really don't. I know what does it for me, and believe me it's different with every partner I've ever had.
So, how you're connecting those dots with her is going to be vastly different from what my husband does with me.
Here's another secret: not every woman orgasms during sexual intimacy. And trying to force it will only make it worse.
Here are the questions you need to have answered: is she enjoying sex? Are you enjoying sex? Has she expressed disappointment about not orgasming? If the answers are not yes, yes, no, then you should be concerned. Otherwise, let it be and continue to have fun.