So embarrassed and upset :(

I feel so embarrassed after my husband just shouted at me in front of his parents. He is in the middle of doing a fitness diet and plan which he is following religiously. I’m currently early weeks pregnant and was hungry after not managing to eat much through the day so I was going to order myself and my 3 year old son a take away for dinner as we had been away all day delivering Christmas presents to our family. His parents had just arrived at the same time as us so I asked them if they wanted anything too and they said no, but I didn’t proceed to ask my husband. Because I thought it would be the last thing he would want to get when he is sticking to his training plan so well. When the food came he was like ‘did you get me anything’ and I said no I didn’t think you would want anything from the chip shop because of your meal plan and he carried on to lose it, saying he was starving and hadnt eaten anything all day. I apologised saying I’m Sorry I honestly thought that would be the last thing you would want to eat while sticking to your diet’ and I offered to order something for him and go to pick it up. But he got even more annoyed that I was offering and told me to just go and get my food and if I don’t eat my food because of him he’s going to be even more pissed off and why am i making a fuss about it. At this point I feel so guilty for not asking and really don’t want to eat my food in front of him and his parents knowing that he is starving. I am also so embarrassed for being shouted at that I just had to take myself away and cried on my own. Honestly I felt so sick to my stomach my appetite was lost. I didn’t want to make his parents feel awkward so I quickly sorted myself out and went back in the room with a little bit of food in a plate as a show of ‘eating something’ but everything tasted like ash in my mouth I wanted to throw up and I couldn’t look anyone in the eye. My parents in law have now left and I am so upset I haven’t spoken to my husband and he’s carrying on like nothing happened and hasn’t apologised or even acknowledged how belittling he has been. I’m still shocked tbh and don’t know if this is just me emotions running high. So just taking some space and time to calm down and will speak to him about it tomorrow. Just needed a space to vent in my moment of dispair :(