Orgasms? Cumming?

Okay, so ive been with one guy. Who is my boyfriend now. We have sex pretty often. About 2x a day. Im on depo but this happened before depo(First shot was Aug 6, second was Oct 30th) Anywho, i can never cum or squirt or anything!!!!!Its so freaking embaressing. Like when i “Orgasm” I get this weird tingling feeling and my body tenses up and legs bend in (if standing up). But i can never cum or squirt and it makes my boyfriend disapointed.