Is he cheating

Today has been one of those days. And laying next to my baby daddy I can’t help but keep getting this voice in my head that he is cheating. I’m not 100% sure why this is but it’s keeping me awake. I’ve had a few dreams before of him dreaming with a girl but I can’t picture her. And now it’s the voice inside my head saying that he is. What do I do ladies. I’m 32 weeks pregnant 😳😳