Talk to Gynecologist on Intercourse During Pregnancy

Currently I'm 5months pregnant. my husband is not sexually active. We had intercourse after almost 6 7 months for once and I got pregnant and since than no intercourse. Now I feel sexually very active all the time. And I have that kind of thought in my mind all the time but after that I feel very yellowish discharge and I'm worried about it. I don't masterbuate myself or anything else but just with the thoughts I have discharge. Now the thing is during my last pregnancy I was 34 weeks pregnant and because of orgasm I think(according to doctor infection ho gea tha thelli mein) my water bag broke and I had early delivery. Now I'm very upset what if I lost my baby or I had to go through the early delivery? My questions is that does that yellowish discharge is going to harm my pregnancy? Or orgasm can harm the pregnancy? I'm very much trying to control my thoughts but nothing is helping much I don't know if its hormonal issue or anything else.

P.s I also have some complications during