Cheating dreams

So I'm 17 weeks pregnant and lately I've been having a lot of dreams about my bf cheating on me. It is just getting annoying. I do have my trust issues but those stem from past relationships as I was cheating on by my ex when I was pregnant with my oldest. I don't believe my bf is cheating on me and I know they're just dreams I'm just wondering if anyone else has been dealing with this? They didn't started happening til I got pregnant. Maybe it's that subconscious fear of being cheating on again while pregnant? I just know I wish they would stop.