My first child but my husbands third

My husband has two kids prior to me. We have them most of the time. We spent two years trying to get pregnant and through treatment it finally happened. I am so excited and he is too. However today my doctor sent me an informative video to watch about genetic testing. I asked my husband if he wanted to watch it with me and that it was a video for us. His response was, “I don’t need to I’ve done this all before.” It felt like a slap in the face. I hear from people all the time about this being my first and not his. But my husband has never made me feel bad about it until then. Makes me feel alone. I did watch it by myself, even though the decision is for both of us he didn’t even ask what the video was about or how it went. He noticed I was upset and later apologized “if he upset me” I still don’t think he understands how I feel or what he even said to upset me. And these pregnancy hormones are probably making it worse but now it’s just stuck in my head that I’m in this newness all alone.