I hate showing emotion

I am currently 9 months pregnant with my first child and I just have a lot of my mind as I prepare for the next phase of my life. As I get closer and closer to my due date people ask me how do I feel about becoming a mother or how does it feel when my baby moves, etc. One thing that has been weighing on my mind is why is it so hard for me to show that sensitive emotional side of my feelings to others. It makes me feel extremely uncomfortable talking about the love and emotions i have for my baby or anyone for that matter. Anytime I have that type of conversation I quickly change the subject. So my main concern is that I won’t be able to show the right type of emotions to my child when he gets here.