YABU
If my Dh was obviously annoyed at me, chose to communicate that by giving me the silent treatment when i returned home, i think i would leave him to sulk all by himself, if I’m honest- regardless of whether he had been feeling unwell or not. I think ignoring someone/dishing out the silent treatment because you’re angry with them is really unpleasant and manipulative- being pregnant (or “hormonal”) doesn’t excuse it either. Even if you have a good reason to be annoyed, it’s a horrible way to behave. I actually think you don’t have all that much to be annoyed about, TBH.
Your DH should have let you know he was running late, but other than that I don’t think he has done anything wrong. This was in the joint calendar, you knew about it and he offered to take your dd with him. You chose to keep her at home with you, which is your perogative but having done so you then can’t moan about it when you had an alternative. I suspect that if your DD was fed before they left and wrapped up warmly that she would have been absolutely fine (and if not, his issue to resolve as she is out with him- e.g. coming home early).
If, having ignored me and flounced off to sulk, my DH then sent a text admonishing me for not grovelling/ checking up to make sure he was fine because he had declared that he was feeling a bit under the weather and tired, I would be really angry with him and I might well choose not to respond to that text and wait until he had the decency to come and actually talk to me properly about the situation. I have absolutely no time for that sort of behaviour- it’s terribly childish, passive aggressive and deeply unpleasant.
If you are feeling unwell and need something, you are an adult who is capable of asking for help if you need him to do something. If you don’t need anything, but just want to be check on, then given how you have conducted yourself I am not surprised he has chosen not to fawn all over you.