3Months and theething?

My son is showing signs of teething, and where the two front teeth would be its starting to look like that's where his first tooth might come in. Is it normal for a 3month old to be teething?

    Mine start about then, but the teeth haven't broke through until around 6 months.
    About Alyssa
    Current: Ormond Beach, Florida
    Birth: March 29
    On Moms.com since: Feb 28, 2014
    I am a Single mom to a beautiful baby boy who was born on July 23rd 2014. He is my whole world, my reason for still being alive. He is my heart.