Please help me! I just noticed this, this morning! What is it?!

Alexis • Im 27, you can call me Lexi 💕 First time mommy to a baby girl 👶🏽🎀 now baby boy 👶🏽💙 Was pregnant with identical twin girls💕 Guardian Angel 👼🏽 4/26/17 Miracle Baby 💕🎀 12/13/17

I noticed this on my daughters head this morning! Idk what it is. I thought it was a fuzzy from my comforter but its not coming off! Shes 2months and some change.