How to ask about it?

Hi, I'm 19 years old, I've been struggling with anxiety disorder and depression for past 7 years, I'm on SSRI and I've been in therapy for 2 years. A while ago(a year or something like that) I developed extreme fear of pregnancy, to the point at which when I even touch my boyfriend in any sexual manner I get paranoid. I've never had penetrative Intercourse, only oral, I'm careful about not getting any semen even near my vagina, and I'm in 3 years long relationship, my boyfriends knows about everything and is extremely supporting and understanding. Before developing this fear I was more open to touching and oral sex, but now I'm never on the receiving end, it basically ruined my sex life. But the anxiety got too hard to manage, and I finally got the courage to talk about it to my mom, and schedule an appointment with a gynecologist.

With all of that in mind, do you have any advice on how to ask the doctor to prescribe contraceptives? Should I tell them about the anxiety and the obsessive thoughts? I want to get on the pill or get the implant to be able to stop this anxiety and to regain any pleasure from sexual activities. It's also something that my therapist recommended. I just don't know how to tell all that to the doctor, and it's making me even more anxious. Am I the only one that goes through this? And if I'm not, does the fear get any better? Thank you for reading all of that and for any answers <33