Texting other ppl while I’m pregnant

So I woke up today and i was putting my boyfriends phone on the charger and something came over me to check his messages I did and he had a message on hide alerts like the moon on the iPhone and I asked him who is this and why are the alerts on silent he said it’s a person at work they give him info on bad guys he’s a cop btw anyways so we talking about that he was consoling me cause I was crying because you already feel insecure about stuff when your growing and getting bigger in pregnancy w.e he goes on to tell me I have nothing to worry about then he was going to the gym to de stress or whatever had a mini argument and again grabbed his phone picked it up and another chick texted his phone say hey how was that drink or some bullshit and I called the bitch and I said why are you texting my husband she said husband no one said he was married and now we are arguing the whole day about this I never thought I would be having to go through this with him cause he always praises me about how sexy I am and how much he loves me and happy to be with me now I see this I dunno what to do I feel very lost thank you for reading glow sister ❤️💕💙💜