I stole my pregnant friend dirty panties

I was visiting her and she Just got out of the shower in the bathroom, I entered as soon as she was out and noticed she forgot her clothes recently worn, I couldnt hold myself and decided to take a whiff on her panties, and as soon as I noticed she was knocking the door, I got a fright and put the panties in my pocket and left the bathroom, she entered after me and im pretty sure she noticed her panties missed