New Lump on gums around extracted tooth forming over three months after tooth extraction. Should I be concerned?

As per the description. Over the weekend I've had a lump form (not causing pain, or any symptoms of an infection yet) on my gum, in the location of a tooth that I've had extracted over 3 months ago. I'll be contacting my dentist as soon as possible anyway to try and get it checked out, but I'm wondering if any experts here could potentially provide an insight to what this could potentially be.

To reiterate, it's soft to touch, not painful, and I've got no other swelling, or symptoms of an infection yet.

Any guidance would be appreciated!