No oral. Any kind of stimulation could introduce bacteria. Leave it alone for another week or so.
If the doctor said "complete pelvic rest," then probably he was warning against orgasms no matter how generated. But if he just said "no sex," he probably meant no penetrative sex with weight on the site of the operation. You could call and ask the nurse.
You should be okay. However you are right sometimes it may hurt to orgasm. You could take the chance and might be okay. Won't know until you do it