Teething at 12 weeks?

L 💕✨ • 🌈 💚 Momma to Nora 01.15.19 | Baby Brother coming 11.17.2022 🐻💙

Could my baby be teething already at 12 weeks? She has been drooling more, and the past couple weeks hasn’t been sleeping as well, and then today is super irritable and only wants to be held and she has a temperature of 99.2 (ps- should we be worried or just give some infant Tylenol?).