Maternity Clothes Reaction

Yesterday the SO and I were walking through the mall and came upon Motherhood Maternity. I'm a FTM and only 10w and still doing alright in my existing wardrobe, but we decided to go in and just take a look. I was surprised by my reaction. I was highly uncomfortable in the store and I was feeling mad thinking ahead to the point when I will need maternity clothing. I'm still puzzled today over my reaction. Any of you ever had a similar reaction or just an odd reaction?