Am I over reacting?

Okay so this is really long but I'm so angry! Me and my partner had our first scan today for this pregnancy. My son was stillborn in January and understandably I have been nervous all week and especially this morning. The scan went well - all good news ♡ as soon as we left the hospital he said he was going to the pub for an hour and would be home soon, as he took the whole day off to be with me. He left at four and it's now ten and he's still not home! I've already called him and told him how upset I am and how much today meant to me. He just said sorry and still didn't come home. I'm just so upset but I wanted to ask if you think I'm over reacting? I know I'm so emotional and sensitive at the minute but this has made me so angry!