Sex and pelvic organ prolapse

This post might be all over the place, so I apologize in advance if it's a little hard to follow. I recently found out I have a stage 2 prolapse after giving birth to my 3 month old. I was cleared at my 6 week appointment to resume sex, but held off as I was still having discomfort. Turns out that discomfort is the prolapse. It isn't protruding out of me, but my uterus, bladder, and vaginal walls are all bulging near the vaginal opening. My OBGYN and pelvic floor therapist all said sex should be fine and I shouldn't have an issue, but when it came time to do the deed I chickened out. I guess I'm just looking for someone who has maybe gone through this before and has any advice? I want to be intimate with my husband again, I'm just really nervous about this.