You were ambushed by the ABDL MG, or ABDL Magical Girls. They're a group of four girls, Saki Skye Erin and Nika, who hit you in the head, who became unconscious

You wake up in a pink area, your mind if foggy. But when your vision clears, you see you're laying in a crib, with a hanging mobile. You look at your outfit, and you're in a pink diaper, a pink sleeper, and pink mittens and booties. On your neck is a pink bib, on your head is a pink bonnet, and in your mouth is a pink pacifier gag

Saki: Oh my, what a stinky baby you are