Relationship question

If your man blocked a “business” and you found out it was a female that he didn’t want texting him but to text her when he wanted how would that make you feel? I hit this girl up, their stories matched but I think it’s very strange this happened. He never once told me about getting her number or even blocking her. I went ahead and found out myself. However I don’t think she would cover for him because she is talking and hanging out with another guy. Tbh, I don’t know what to think, or what to do. I’m just fed up with him accusing me of cheating when I’m 21 weeks pregnant with his kid and it seems like I can never catch a break. Any advice for me?