3 Months old today...and a tooth!

Bella has been constantly sticking her hand in her mouth today and chewing way more than normal so I decided to have a little investigation. I was aware that her lower bottom gum was a little white and thought it wouldn't be long before we saw the first tooth there. But, I discovered that one of the prongs on her upper right back teeth is through! There is a proper piece of tooth poking through the gum. I thought these were the last ones to make an appearance usually and I totally didn't expect to see the start of a tooth so soon. I can't believe the changes in her in such a short space of time, but also can't believe she's three months already!