Losing feelings for my fiancé

Not sure if it's hormones or I am generally losing feelings for my fiancé. We have been together 2 years and I am 10 weeks pregnant. Since a week or so after I became pregnant, I feel like I am losing my feelings for him. I make excuses not to kiss and hug him, simply because I don't want to. Also, I just feel like I don want to be around him anymore and everything he does just irritates me. Obviously the arguing has started . What do I do? is it just possibly the pregnancy hormones that are playing tricks on me or am I really getting detached, I can't tell him how I feel as I don't want to hurt him. Sad 😔