HELP!!!! Painful Sex

Okay guys so I need help... I notice that when my Boyfriend and I have sex it’s painful. Like it hurts when he fingers me but even when we are having sex it hurts like a stabbing burning pain. I talked to my dr about it and she said maybe I need to use lube. I told her we did use lube and it still hurt. She suggested a different brand and type of lube. We always use protection and I thought maybe it was the condom. But I just don’t know what to do I feel like my boyfriend thinks it’s because I don’t want to or don’t enjoy it but I keep telling him it’s not that it’s just it’s fucking painful and I keep trying to suck it up and just do it for him but it hurts. Anyone have any advice???? I know sex is not everything in a relationship but I know it does matter and I want to be able to enjoy it with my partner. 😩