Still very early days for you Jeff. I'll repost a couple of links for you to help answer your question. Be sure you are icing and elevating as much as possible to help get that swelling controlled.
Swollen and stiff knee: what causes it?
Activity progression for TKRs
Healing: how long does it take?
Chart representation of TKR recovery
Elevation is the key
Ice to control pain and swelling
Swollen and stiff knee: what causes it?
Activity progression for TKRs
Healing: how long does it take?
Chart representation of TKR recovery
Elevation is the key
Ice to control pain and swelling
United Kingdom