Yesterday afternoon, my daughter's temperature spiked to 38.8, after w…

Yesterday afternoon, my daughter's temperature spiked to 38.8, after which she took some ibuprofen. It rose again to 39.6 by night and was around 38 in the morning. We saw a pediatrician who said it seems like her molars are moving, with a slight stuffy nose, throat not red, almost unchanged. As the temperature drops, she is cheerful and playful. Can teeth start growing so early? When did your children's molars come in?