Am I being crazy orrrrrr

So I’m currently 7 months pregnant with my first. I’m writing to get some honest answers about if I’m in the wrong or if my partner is. He went out two weekends ago for a “guys night” for his friends birthday. Our rule is if you’re not going to be home by two, you call. He never called and didn’t get home until 5 am. Then, tonight, he goes out for a “guys night” for his birthday. He doesn’t call and his phone goes straight to voicemail two times in a row at 2:30 am. He finally gets back to me and says “he had no service.” Now it’s nearing 3:30 and he’s still nowhere to be seen. Am I wrong to be mad? Am I just being hormonal? Or would you be mad, too? I’m sick of the childishness. He doesn’t go out often (these last two times have been an anomaly he literally goes out like 6 times a year), but every single time he does, he pulls the same bs when I’ve made myself so clear about what I expect from him communication wise. I should add that outside of this, he is a generally good partner and hasn’t given me reasons to not trust him.