i want to have sex with my partner. but i have a few problems: i have endometriosis and i've experienced sexual assault.

statistics have shown that up to 50% of women with endometriosis have pain during sex. also, i was raped when i was 5 and my ob/gyn and therapist say that the trauma may give me vaginismus and/or ptsd like flashbacks when i'm in a sexual situation.

i've only masturbated clitorally, because inserting anything always hurts and stings, but i'm not sure if that's just because i haven't really had sex before.

my haven't told my boyfriend about any of this, because i (irrationally!!) think that if i tell him he'll leave me. he's a very understanding guy and never pushes me, always asks if i'm comfortable with what he's doing.

i just really want to have sex, comfortably, with him! i could use some advice on what to do to prepare for it.