He’s Cheating

I’m 5 weeks postpartum today and I’ve been extremely paranoid about my SO cheating on me. I have nightmares about it that stick with me through the entire day. And I can’t shake this feeling that he’s cheating or will cheat. But he hasn’t done anything to make me feel this way. I feel like I’m just being paranoid but sometimes I believe it’s intuition. I question if he’s really at work when he says he is even tho we have an app where we can see each other’s location at all times. I just feel boring and undesirable. Did anyone else experience this?