Pinky Hair Salon Brampton I Have A 2 Week Old Mouse The Size Of A Pinky But With Hair?

I have a 2 week old mouse the size of a pinky but with hair? - pinky hair salon brampton

I have to get rid of 1 male and 4 female mice and humans, but then all the women were pregnant and had 22 children total. But now they are between 2 weeks and one of them the size of a finger is newborn, but her hair. He looks tiny compared to their brothers and sisters.So why this mouse is so small?