It's so different for everyone. You could be having orgasms that aren't that strong or you are getting close to orgasm but stopping before the full climax. The pre orgasm convulsions can be confusing.
Have you tried gspot stimulation? I get much better orgasms by that instead of my clit. Take your index and/or middle finger, put them inside with your fingertips facing toward your front and then curl your fingers upwards. You should feel something ridged or wrinkly, that's what you want to focus on. If masturbation isn't doing it then next time you're with a guy have him do the same thing. A lot of guys are bad at fingering simply because they are aimlessly poking around inside your pussy instead of focusing on the gspot.
Don't be surprised if it makes you feel like you have to pee. Put a towel down the first couple times because you might pee a little bit during orgasm.>>103170>>103175
I second this. If you're in America you can buy $1 pregnancy tests at Dollar Tree. It's the exact same thing as they use in the doctor's office so don't be afraid of the price. I still take two every month because I'm paranoid.
OT but that store is amazing if you need dishes, cleaning supplies, shelf stable food and candy for the movie theater.